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div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Not to be confused with <a href="/wiki/FreeBSD" title="FreeBSD">FreeBSD</a>.</div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><p><b>OpenBSD</b> is a <a href="/wiki/Security-focused_operating_system" title="Security-focused operating system">security-focused</a>, <a href="/wiki/Free_software" title="Free software">free software</a>, <a href="/wiki/Unix-like" title="Unix-like">Unix-like</a> <a href="/wiki/Operating_system" title="Operating system">operating system</a> based on the <a href="/wiki/Berkeley_Software_Distribution" title="Berkeley Software Distribution">Berkeley Software Distribution</a> (BSD). <a href="/wiki/Theo_de_Raadt" title="Theo de Raadt">Theo de Raadt</a> created OpenBSD in 1995 by <a href="/wiki/Fork_(software_development)" title="Fork (software development)">forking</a> <a href="/wiki/NetBSD" title="NetBSD">NetBSD</a> 1.0.<sup id="cite_ref-coremail_4-0" class="reference"><a href="#cite_note-coremail-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The OpenBSD project emphasizes <a href="/wiki/Software_portability" title="Software portability">portability</a>, <a href="/wiki/Software_standard" title="Software standard">standardization</a>, <a href="/wiki/Software_bug" title="Software bug">correctness</a>, proactive <a href="/wiki/Computer_security" title="Computer security">security</a>, and integrated <a href="/wiki/Cryptography" title="Cryptography">cryptography</a>.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><table class="infobox vevent"><caption class="infobox-title summary">OpenBSD</caption><tbody><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"><a href="/wiki/File:OpenBSD_Logo_-_Cartoon_Puffy_with_textual_logo_below.svg" class="mw-file-description"><img alt="Puffy, the pufferfish mascot of OpenBSD posing in the official logo." src="//upload.wikimedia.org/wikipedia/en/thumb/8/83/OpenBSD_Logo_-_Cartoon_Puffy_with_textual_logo_below.svg/200px-OpenBSD_Logo_-_Cartoon_Puffy_with_textual_logo_below.svg.png" decoding="async" width="200" height="130" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/83/OpenBSD_Logo_-_Cartoon_Puffy_with_textual_logo_below.svg/300px-OpenBSD_Logo_-_Cartoon_Puffy_with_textual_logo_below.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/83/OpenBSD_Logo_-_Cartoon_Puffy_with_textual_logo_below.svg/400px-OpenBSD_Logo_-_Cartoon_Puffy_with_textual_logo_below.svg.png 2x" data-file-width="392" data-file-height="255"></a></span><div class="infobox-caption"><i>Free, Functional, and Secure</i></div></td></tr><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"><a href="/wiki/File:OpenBSD_7.0_fvwm_screenshot.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5e/OpenBSD_7.0_fvwm_screenshot.png/300px-OpenBSD_7.0_fvwm_screenshot.png" decoding="async" width="300" height="169" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5e/OpenBSD_7.0_fvwm_screenshot.png/450px-OpenBSD_7.0_fvwm_screenshot.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5e/OpenBSD_7.0_fvwm_screenshot.png/600px-OpenBSD_7.0_fvwm_screenshot.png 2x" data-file-width="1280" data-file-height="720"></a></span><div class="infobox-caption">OpenBSD 7.0 default desktop with various utilities: <a href="/wiki/Top_(software)" title="Top (software)">top</a>, <a href="/wiki/Xterm" title="Xterm">xterm</a>, <a href="/wiki/Xcalc" class="mw-redirect" title="Xcalc">xcalc</a>, and <a href="/wiki/Glxgears" class="mw-redirect" title="Glxgears">glxgears</a></div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Programmer" title="Programmer">Developer</a></th><td class="infobox-data"><a href="/wiki/Theo_de_Raadt" title="Theo de Raadt">Theo de Raadt</a> et al.</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Programming_language" title="Programming language">Written in</a></th><td class="infobox-data"><a href="/wiki/C_(programming_language)" title="C (programming language)">C</a>, <a href="/wiki/Assembly_language" title="Assembly language">assembly</a>, <a href="/wiki/Perl" title="Perl">Perl</a>, <a href="/wiki/Unix_shell" title="Unix shell">Unix shell</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">OS family</th><td class="infobox-data"><a href="/wiki/Unix-like" title="Unix-like">Unix-like</a> (<a href="/wiki/Berkeley_Software_Distribution" title="Berkeley Software Distribution">BSD</a>)</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Working state</th><td class="infobox-data">Current</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Source model</th><td class="infobox-data"><a href="/wiki/Free_software" title="Free software">Free software</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Initial release</th><td class="infobox-data">July 1996<span class="noprint">; 28 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">1996-07</span>)</span></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_release_life_cycle" title="Software release life cycle">Latest release</a></th><td class="infobox-data">7.6 (8 October 2024<span class="noprint">; 48 days ago</span><span style="display:none"> (<span class="bday dtstart published updated">2024-10-08</span>)</span>) <span class="plainlinks"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Template:Latest_stable_software_release/OpenBSD&amp;action=edit">[±]</a></span></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Repository_(version_control)" title="Repository (version control)">Repository</a></th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li><span class="url"><a rel="nofollow" class="external text" href="https://cvsweb.openbsd.org/cgi-bin/cvsweb/">cvsweb<wbr></wbr>.openbsd<wbr></wbr>.org<wbr></wbr>/cgi-bin<wbr></wbr>/cvsweb<wbr></wbr>/</a></span> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q34215#P1324" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20"></a></span></li></ul> </div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Package_manager" title="Package manager">Package manager</a></th><td class="infobox-data">OpenBSD package tools<sup id="cite_ref-faq15-pkgs_1-0" class="reference"><a href="#cite_note-faq15-pkgs-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Platforms</th><td class="infobox-data"><a href="/wiki/DEC_Alpha" title="DEC Alpha">Alpha</a>, <a href="/wiki/X86-64" title="X86-64">x86-64</a>, <a href="/wiki/ARMv7" class="mw-redirect" title="ARMv7">ARMv7</a>, <a href="/wiki/ARMv8" class="mw-redirect" title="ARMv8">ARMv8 (64-bit)</a>, <a href="/wiki/PA-RISC" title="PA-RISC">PA-RISC</a>, <a href="/wiki/IA-32" title="IA-32">IA-32</a>, <a href="https://ja.wikipedia.org/wiki/LANDISK" class="extiw" title="ja:LANDISK">LANDISK</a>, <a href="/wiki/Loongson" title="Loongson">Loongson</a>, <a href="/wiki/LUNA" title="LUNA">Omron LUNA-88K</a>, <a href="/wiki/MIPS_architecture" title="MIPS architecture">MIPS64</a>, macppc, <a href="/wiki/PowerPC" title="PowerPC">PowerPC</a>, 64-bit <a href="/wiki/RISC-V" title="RISC-V">RISC-V</a>, <a href="/wiki/SPARC" title="SPARC">SPARC64</a><sup id="cite_ref-plat_2-0" class="reference"><a href="#cite_note-plat-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Kernel_(operating_system)" title="Kernel (operating system)">Kernel</a> type</th><td class="infobox-data"><a href="/wiki/Monolithic_kernel" title="Monolithic kernel">Monolithic</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/User_space_and_kernel_space" title="User space and kernel space">Userland</a></th><td class="infobox-data"><a href="/wiki/BSD" class="mw-redirect" title="BSD">BSD</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/User_interface" title="User interface">Default<br>user interface</a></th><td class="infobox-data">Modified <a href="/wiki/KornShell" title="KornShell">pdksh</a>, <a href="/wiki/X_Window_System" title="X Window System">X11</a> (<a href="/wiki/FVWM" title="FVWM">FVWM</a>)</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_license" title="Software license">License</a></th><td class="infobox-data"><a href="/wiki/BSD_licenses" title="BSD licenses">BSD</a>, <a href="/wiki/ISC_license" title="ISC license">ISC</a>, other <a href="/wiki/Permissive_software_license" title="Permissive software license">permissive licenses</a><sup id="cite_ref-policy_3-0" class="reference"><a href="#cite_note-policy-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Official website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="https://www.openbsd.org/">www<wbr></wbr>.openbsd<wbr></wbr>.org</a></span></td></tr></tbody></table> <p>The OpenBSD project maintains portable versions of many subsystems as <a href="/wiki/Package_manager" title="Package manager">packages</a> for other operating systems. Because of the project's preferred BSD license, which allows binary redistributions without the source code, many components are reused in proprietary and corporate-sponsored software projects. The <a href="/wiki/Firewall_(computing)" title="Firewall (computing)">firewall</a> code in <a href="/wiki/Apple_Inc." title="Apple Inc.">Apple</a>'s <a href="/wiki/MacOS" title="MacOS">macOS</a> is based on OpenBSD's <a href="/wiki/PF_(firewall)" title="PF (firewall)">PF</a> firewall code,<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Android_(operating_system)" title="Android (operating system)">Android</a>'s <a href="/wiki/Bionic_(software)" title="Bionic (software)">Bionic</a> <a href="/wiki/C_standard_library" title="C standard library">C standard library</a> is based on OpenBSD code,<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> <a href="/wiki/LLVM" title="LLVM">LLVM</a> uses OpenBSD's <a href="/wiki/Regular_expression" title="Regular expression">regular expression</a> library,<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> and <a href="/wiki/Windows_10" title="Windows 10">Windows 10</a> uses <a href="/wiki/OpenSSH" title="OpenSSH">OpenSSH</a> (OpenBSD Secure Shell) with <a href="/wiki/LibreSSL" title="LibreSSL">LibreSSL</a>.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>The word "open" in the name OpenBSD refers to the availability of the operating system <a href="/wiki/Source_code" title="Source code">source code</a> on the <a href="/wiki/Internet" title="Internet">Internet</a>, although the word "open" in the name OpenSSH means "OpenBSD". It also refers to the wide range of <a href="/wiki/Computer_architecture" title="Computer architecture">hardware platforms</a> the system supports.<sup id="cite_ref-infoworld_new_years_resolution_10-0" class="reference"><a href="#cite_note-infoworld_new_years_resolution-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> OpenBSD supports a variety of system architectures including <a href="/wiki/X86-64" title="X86-64">x86-64</a>, <a href="/wiki/IA-32" title="IA-32">IA-32</a>, <a href="/wiki/ARM_architecture_family" title="ARM architecture family">ARM</a>, <a href="/wiki/PowerPC" title="PowerPC">PowerPC</a>, and 64-bit <a href="/wiki/RISC-V" title="RISC-V">RISC-V</a>. </p> <div id="toc" class="toc" role="navigation" aria-labelledby="mw-toc-heading"><input type="checkbox" role="button" id="toctogglecheckbox" class="toctogglecheckbox" style="display:none"><div class="toctitle" lang="en" dir="ltr"><h2 id="mw-toc-heading">Contents</h2><span class="toctogglespan"><label class="toctogglelabel" for="toctogglecheckbox"></label></span></div> <ul> <li class="toclevel-1 tocsection-1"><a href="#History"><span class="tocnumber">1</span> <span class="toctext">History</span></a></li> <li class="toclevel-1 tocsection-2"><a href="#Usage_statistics"><span class="tocnumber">2</span> <span class="toctext">Usage statistics</span></a></li> <li class="toclevel-1 tocsection-3"><a href="#Uses"><span class="tocnumber">3</span> <span class="toctext">Uses</span></a> <ul> <li class="toclevel-2 tocsection-4"><a href="#Network_appliances"><span class="tocnumber">3.1</span> <span class="toctext">Network appliances</span></a></li> <li class="toclevel-2 tocsection-5"><a href="#Other_operating_systems"><span class="tocnumber">3.2</span> <span class="toctext">Other operating systems</span></a></li> <li class="toclevel-2 tocsection-6"><a href="#Personal_computers"><span class="tocnumber">3.3</span> <span class="toctext">Personal computers</span></a></li> <li class="toclevel-2 tocsection-7"><a href="#Servers"><span class="tocnumber">3.4</span> <span class="toctext">Servers</span></a></li> </ul> </li> <li class="toclevel-1 tocsection-8"><a href="#Security"><span class="tocnumber">4</span> <span class="toctext">Security</span></a> <ul> <li class="toclevel-2 tocsection-9"><a href="#Security_record"><span class="tocnumber">4.1</span> <span class="toctext">Security record</span></a></li> <li class="toclevel-2 tocsection-10"><a href="#Alleged_backdoor"><span class="tocnumber">4.2</span> <span class="toctext">Alleged backdoor</span></a></li> <li class="toclevel-2 tocsection-11"><a href="#Criticisms"><span class="tocnumber">4.3</span> <span class="toctext">Criticisms</span></a></li> </ul> </li> <li class="toclevel-1 tocsection-12"><a href="#Subprojects"><span class="tocnumber">5</span> <span class="toctext">Subprojects</span></a></li> <li class="toclevel-1 tocsection-13"><a href="#Third-party_components"><span class="tocnumber">6</span> <span class="toctext">Third-party components</span></a></li> <li class="toclevel-1 tocsection-14"><a href="#Development"><span class="tocnumber">7</span> <span class="toctext">Development</span></a></li> <li class="toclevel-1 tocsection-15"><a href="#Open_source_and_open_documentation"><span class="tocnumber">8</span> <span class="toctext">Open source and open documentation</span></a></li> <li class="toclevel-1 tocsection-16"><a href="#Licensing"><span class="tocnumber">9</span> <span class="toctext">Licensing</span></a></li> <li class="toclevel-1 tocsection-17"><a href="#Funding"><span class="tocnumber">10</span> <span class="toctext">Funding</span></a> <ul> <li class="toclevel-2 tocsection-18"><a href="#OpenBSD_Foundation"><span class="tocnumber">10.1</span> <span class="toctext">OpenBSD Foundation</span></a></li> </ul> </li> <li class="toclevel-1 tocsection-19"><a href="#Distribution"><span class="tocnumber">11</span> <span class="toctext">Distribution</span></a></li> <li class="toclevel-1 tocsection-20"><a href="#Songs_and_artwork"><span class="tocnumber">12</span> <span class="toctext">Songs and artwork</span></a></li> <li class="toclevel-1 tocsection-21"><a href="#Releases"><span class="tocnumber">13</span> <span class="toctext">Releases</span></a></li> <li class="toclevel-1 tocsection-22"><a href="#See_also"><span class="tocnumber">14</span> <span class="toctext">See also</span></a></li> <li class="toclevel-1 tocsection-23"><a href="#Notes"><span class="tocnumber">15</span> <span class="toctext">Notes</span></a></li> <li class="toclevel-1 tocsection-24"><a href="#References"><span class="tocnumber">16</span> <span class="toctext">References</span></a></li> <li class="toclevel-1 tocsection-25"><a href="#External_links"><span class="tocnumber">17</span> <span class="toctext">External links</span></a></li> </ul> </div> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(1)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="History">History</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=1" title="Edit section: History" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-1 collapsible-block" id="mf-section-1"> <p>In December 1994, <a href="/wiki/Theo_de_Raadt" title="Theo de Raadt">Theo de Raadt</a>, a founding member of the <a href="/wiki/NetBSD" title="NetBSD">NetBSD</a> project, was asked to resign from the NetBSD core team over disagreements and conflicts with the other members of the NetBSD team.<sup id="cite_ref-glass_11-0" class="reference"><a href="#cite_note-glass-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-coremail_4-1" class="reference"><a href="#cite_note-coremail-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> In October 1995, De Raadt founded OpenBSD, a new project forked from NetBSD 1.0. The initial release, OpenBSD 1.2, was made in July 1996, followed by OpenBSD 2.0 in October of the same year.<sup id="cite_ref-2.0-release_12-0" class="reference"><a href="#cite_note-2.0-release-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> Since then, the project has issued a release every six months, each of which is supported for one year. </p><p>On 25 July 2007, OpenBSD developer Bob Beck announced the formation of the <a href="/wiki/OpenBSD_Foundation" class="mw-redirect" title="OpenBSD Foundation">OpenBSD Foundation</a>, a Canadian non-profit organization formed to "act as a single point of contact for persons and organizations requiring a legal entity to deal with when they wish to support OpenBSD."<sup id="cite_ref-announcing-openbsd-foundation_13-0" class="reference"><a href="#cite_note-announcing-openbsd-foundation-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </p><p>In 2024, it announced that the project has modified all files since the original import.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(2)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Usage_statistics">Usage statistics</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=2" title="Edit section: Usage statistics" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-2 collapsible-block" id="mf-section-2"> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Bsd_distributions_usage.svg" class="mw-file-description"><noscript><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/66/Bsd_distributions_usage.svg/170px-Bsd_distributions_usage.svg.png" decoding="async" width="170" height="243" class="mw-file-element" data-file-width="301" data-file-height="431"></noscript><span class="lazy-image-placeholder" style="width: 170px;height: 243px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/6/66/Bsd_distributions_usage.svg/170px-Bsd_distributions_usage.svg.png" data-width="170" data-height="243" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/66/Bsd_distributions_usage.svg/255px-Bsd_distributions_usage.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/66/Bsd_distributions_usage.svg/340px-Bsd_distributions_usage.svg.png 2x" data-class="mw-file-element">&nbsp;</span></a><figcaption><a href="/wiki/Bar_chart" title="Bar chart">Bar chart</a> showing the proportion of users of each <a href="/wiki/Berkeley_Software_Distribution" title="Berkeley Software Distribution">BSD</a> variant from a 2005 BSD usage survey of 4330 users.<sup id="cite_ref-survey_15-0" class="reference"><a href="#cite_note-survey-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-survey_nuance_16-0" class="reference"><a href="#cite_note-survey_nuance-16"><span class="cite-bracket">[</span>note 1<span class="cite-bracket">]</span></a></sup></figcaption></figure> <p>It is hard to determine how widely OpenBSD is used, because the developers do not publish or collect usage statistics. </p><p>In September 2005, the BSD Certification Group surveyed 4330 individual BSD users, showing that 32.8% used OpenBSD,<sup id="cite_ref-survey_15-1" class="reference"><a href="#cite_note-survey-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> behind <a href="/wiki/FreeBSD" title="FreeBSD">FreeBSD</a> with 77%, ahead of NetBSD with 16.3% and <a href="/wiki/DragonFly_BSD" title="DragonFly BSD">DragonFly BSD</a> with 2.6%<sup id="cite_ref-survey_nuance_16-1" class="reference"><a href="#cite_note-survey_nuance-16"><span class="cite-bracket">[</span>note 1<span class="cite-bracket">]</span></a></sup>. However, the authors of this survey clarified that it is neither "exhaustive" nor "completely accurate", since the survey was spread mainly through mailing lists, forums and word of mouth. This combined with other factors, like the lack of a control group, a pre-screening process or significant outreach outside of the BSD community, makes the survey unreliable for judging BSD usage globally. </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(3)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Uses">Uses</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=3" title="Edit section: Uses" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-3 collapsible-block" id="mf-section-3"> <div class="mw-heading mw-heading3"><h3 id="Network_appliances">Network appliances</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=4" title="Edit section: Network appliances" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>OpenBSD features a robust <a href="/wiki/TCP/IP" class="mw-redirect" title="TCP/IP">TCP/IP</a> <a href="/wiki/Computer_network" title="Computer network">networking</a> stack, and can be used as a <a href="/wiki/Router_(computing)" title="Router (computing)">router</a><sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> or <a href="/wiki/Wireless_access_point" title="Wireless access point">wireless access point</a>.<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> OpenBSD's <a href="/wiki/OpenBSD_security_features" title="OpenBSD security features">security enhancements</a>, built-in <a href="/wiki/Cryptography" title="Cryptography">cryptography</a>, and <a href="/wiki/PF_(firewall)" title="PF (firewall)">packet filter</a> make it suitable for security purposes such as <a href="/wiki/Firewall_(computing)" title="Firewall (computing)">firewalls</a>,<sup id="cite_ref-closer-look-openbsd_19-0" class="reference"><a href="#cite_note-closer-look-openbsd-19"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Intrusion-detection_system" class="mw-redirect" title="Intrusion-detection system">intrusion-detection systems</a>, and <a href="/wiki/Virtual_private_network" title="Virtual private network">VPN</a> <a href="/wiki/Gateway_(computer_networking)" class="mw-redirect" title="Gateway (computer networking)">gateways</a>. </p><p>Several <a href="/wiki/Proprietary_software" title="Proprietary software">proprietary</a> systems are based on OpenBSD, including devices from <a href="/w/index.php?title=Armorlogic&amp;action=edit&amp;redlink=1" class="new" title="Armorlogic (page does not exist)">Armorlogic</a> (Profense web application firewall), Calyptix Security,<sup id="cite_ref-calyptix_20-0" class="reference"><a href="#cite_note-calyptix-20"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> GeNUA,<sup id="cite_ref-genua_21-0" class="reference"><a href="#cite_note-genua-21"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> RTMX,<sup id="cite_ref-rtmx_22-0" class="reference"><a href="#cite_note-rtmx-22"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> and .vantronix.<sup id="cite_ref-vantronix_23-0" class="reference"><a href="#cite_note-vantronix-23"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Other_operating_systems">Other operating systems</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=5" title="Edit section: Other operating systems" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>Some versions of <a href="/wiki/Microsoft" title="Microsoft">Microsoft</a>'s <a href="/wiki/Windows_Services_for_UNIX" title="Windows Services for UNIX">Services for UNIX</a>, an extension to the <a href="/wiki/Microsoft_Windows" title="Microsoft Windows">Windows</a> operating system to provide Unix-like functionality, use much of the OpenBSD code base that is included in the <a href="/wiki/Interix" title="Interix">Interix</a> interoperability suite,<sup id="cite_ref-wsu35_review_24-0" class="reference"><a href="#cite_note-wsu35_review-24"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-wontfix_25-0" class="reference"><a href="#cite_note-wontfix-25"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> developed by Softway Systems Inc., which Microsoft acquired in 1999.<sup id="cite_ref-softway_26-0" class="reference"><a href="#cite_note-softway-26"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-interix_27-0" class="reference"><a href="#cite_note-interix-27"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> Core Force, a security product for Windows, is based on OpenBSD's <a href="/wiki/PF_(firewall)" title="PF (firewall)">pf firewall</a>.<sup id="cite_ref-core-force_28-0" class="reference"><a href="#cite_note-core-force-28"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> The <a href="/wiki/PF_(firewall)" title="PF (firewall)">pf firewall</a> is also found in other operating systems: including <a href="/wiki/FreeBSD" title="FreeBSD">FreeBSD</a>,<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> and <a href="/wiki/MacOS" title="MacOS">macOS</a>.<sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Personal_computers">Personal computers</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=6" title="Edit section: Personal computers" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>OpenBSD ships with <a href="/wiki/Xenocara" title="Xenocara">Xenocara</a>,<sup id="cite_ref-xenocara_31-0" class="reference"><a href="#cite_note-xenocara-31"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> an implementation of the <a href="/wiki/X_Window_System" title="X Window System">X Window System</a>, and is suitable as a desktop operating system for <a href="/wiki/Personal_computer" title="Personal computer">personal computers</a>, including laptops.<sup id="cite_ref-openbsd-desktop_32-0" class="reference"><a href="#cite_note-openbsd-desktop-32"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-absolute_openbsd_33-0" class="reference"><a href="#cite_note-absolute_openbsd-33"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page / location: xl">: xl </span></sup> As of September 2018<sup class="plainlinks noexcerpt noprint asof-tag update" style="display:none;"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=OpenBSD&amp;action=edit">[update]</a></sup>, OpenBSD includes approximately 8000 packages in its <a href="/wiki/Software_repository" title="Software repository">software repository</a>,<sup id="cite_ref-openports_34-0" class="reference"><a href="#cite_note-openports-34"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> including desktop environments such as <a href="/wiki/Lumina_(desktop_environment)" title="Lumina (desktop environment)">Lumina</a>, <a href="/wiki/GNOME" title="GNOME">GNOME</a>, <a href="/wiki/KDE_Plasma" title="KDE Plasma">KDE Plasma</a>, and <a href="/wiki/Xfce" title="Xfce">Xfce</a>, and web browsers such as <a href="/wiki/Firefox" title="Firefox">Firefox</a> and <a href="/wiki/Chromium_(web_browser)" title="Chromium (web browser)">Chromium</a>.<sup id="cite_ref-6.0-release_35-0" class="reference"><a href="#cite_note-6.0-release-35"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> The project also includes three window managers in the main distribution: <a href="/wiki/Cwm_(window_manager)" title="Cwm (window manager)">cwm</a>, <a href="/wiki/FVWM" title="FVWM">FVWM</a> (part of the default configuration for Xenocara), and <a href="/wiki/Twm" title="Twm">twm</a>.<sup id="cite_ref-faq11_36-0" class="reference"><a href="#cite_note-faq11-36"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Servers">Servers</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=7" title="Edit section: Servers" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>OpenBSD features a full <a href="/wiki/Server_(computing)" title="Server (computing)">server</a> suite and can be configured as a <a href="/wiki/Mail_server" class="mw-redirect" title="Mail server">mail server</a>, <a href="/wiki/Web_server" title="Web server">web server</a>, <a href="/wiki/FTP_server" title="FTP server">FTP server</a>, <a href="/wiki/DNS_server" class="mw-redirect" title="DNS server">DNS server</a>, <a href="/wiki/Router_(computing)" title="Router (computing)">router</a>, <a href="/wiki/Firewall_(computing)" title="Firewall (computing)">firewall</a>, <a href="/wiki/Network_File_System" title="Network File System">NFS</a> <a href="/wiki/File_server" title="File server">file server</a>, or any combination of these. Since version 6.8, OpenBSD has also shipped with native in-kernel <a href="/wiki/WireGuard" title="WireGuard">WireGuard</a> support.<sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup> </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(4)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Security">Security</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=8" title="Edit section: Security" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-4 collapsible-block" id="mf-section-4"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/OpenBSD_security_features" title="OpenBSD security features">OpenBSD security features</a></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:OpenBSD_7.0_console_screenshot.png" class="mw-file-description"><noscript><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/69/OpenBSD_7.0_console_screenshot.png/220px-OpenBSD_7.0_console_screenshot.png" decoding="async" width="220" height="122" class="mw-file-element" data-file-width="720" data-file-height="400"></noscript><span class="lazy-image-placeholder" style="width: 220px;height: 122px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/6/69/OpenBSD_7.0_console_screenshot.png/220px-OpenBSD_7.0_console_screenshot.png" data-width="220" data-height="122" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/69/OpenBSD_7.0_console_screenshot.png/330px-OpenBSD_7.0_console_screenshot.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/69/OpenBSD_7.0_console_screenshot.png/440px-OpenBSD_7.0_console_screenshot.png 2x" data-class="mw-file-element">&nbsp;</span></a><figcaption>OpenBSD console login and its messages</figcaption></figure> <p>Shortly after OpenBSD was created, De Raadt was contacted by a local security software company named Secure Networks (later acquired by <a href="/wiki/McAfee" title="McAfee">McAfee</a>).<sup id="cite_ref-staying-cutting-edge_39-0" class="reference"><a href="#cite_note-staying-cutting-edge-39"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-onlamp-interview_40-0" class="reference"><a href="#cite_note-onlamp-interview-40"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup> The company was developing a <a href="/wiki/Network_security" title="Network security">network security</a> auditing tool called Ballista,<sup id="cite_ref-ballista_41-0" class="reference"><a href="#cite_note-ballista-41"><span class="cite-bracket">[</span>note 2<span class="cite-bracket">]</span></a></sup> which was intended to find and <a href="/wiki/Exploit_(computer_security)" title="Exploit (computer security)">exploit</a> software security flaws. This coincided with De Raadt's interest in security, so the two cooperated leading up to the release of OpenBSD 2.3.<sup id="cite_ref-2.3-announcement_42-0" class="reference"><a href="#cite_note-2.3-announcement-42"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup> This collaboration helped to define security as the focus of the OpenBSD project.<sup id="cite_ref-free-for-all_43-0" class="reference"><a href="#cite_note-free-for-all-43"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup> </p><p>OpenBSD includes numerous features designed to improve security, such as: </p> <ul><li>Secure alternatives to <a href="/wiki/POSIX" title="POSIX">POSIX</a> functions in the C standard library, such as <code><a href="/wiki/Strlcat" class="mw-redirect" title="Strlcat">strlcat</a></code> for <code><a href="/wiki/Strcat" class="mw-redirect" title="Strcat">strcat</a></code> and <code><a href="/wiki/Strlcpy" class="mw-redirect" title="Strlcpy">strlcpy</a></code> for <code><a href="/wiki/Strcpy" class="mw-redirect" title="Strcpy">strcpy</a></code><sup id="cite_ref-strlcpy-strlcat-paper_44-0" class="reference"><a href="#cite_note-strlcpy-strlcat-paper-44"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup></li> <li>Toolchain alterations, including a <a href="/wiki/Static_code_analysis" class="mw-redirect" title="Static code analysis">static bounds checker</a><sup id="cite_ref-man_gcc-local_45-0" class="reference"><a href="#cite_note-man_gcc-local-45"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup></li> <li>Memory protection techniques to guard against invalid accesses, such as <a href="/wiki/Stack-smashing_protection#GCC_Stack-Smashing_Protector_(ProPolice)" class="mw-redirect" title="Stack-smashing protection">ProPolice</a> and the <a href="/wiki/W%5EX" title="W^X">W^X</a> <a href="/wiki/Paging" class="mw-redirect" title="Paging">page</a> protection feature</li> <li>Strong <a href="/wiki/Cryptography" title="Cryptography">cryptography</a> and <a href="/wiki/Randomization" title="Randomization">randomization</a><sup id="cite_ref-crypto-openbsd-overview_46-0" class="reference"><a href="#cite_note-crypto-openbsd-overview-46"><span class="cite-bracket">[</span>44<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/System_call" title="System call">System call</a> and <a href="/wiki/Filesystem" class="mw-redirect" title="Filesystem">filesystem</a> access restrictions to limit process capabilities<sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup></li></ul> <p>To reduce the risk of a vulnerability or misconfiguration allowing <a href="/wiki/Privilege_escalation" title="Privilege escalation">privilege escalation</a>, many programs have been written or adapted to make use of <a href="/wiki/Privilege_separation" title="Privilege separation">privilege separation</a>, <a href="/wiki/Privilege_revocation_(computing)" title="Privilege revocation (computing)">privilege revocation</a> and <a href="/wiki/Chroot" title="Chroot">chrooting</a>. Privilege separation is a technique, pioneered on OpenBSD and inspired by the <a href="/wiki/Principle_of_least_privilege" title="Principle of least privilege">principle of least privilege</a>, where a program is split into two or more parts, one of which performs privileged operations and the other—almost always the bulk of the code—runs without privilege.<sup id="cite_ref-privilege-separated-openssh_48-0" class="reference"><a href="#cite_note-privilege-separated-openssh-48"><span class="cite-bracket">[</span>46<span class="cite-bracket">]</span></a></sup> Privilege revocation is similar and involves a program performing any necessary operations with the privileges it starts with then dropping them. Chrooting involves restricting an application to one section of the <a href="/wiki/File_system" title="File system">file system</a>, prohibiting it from accessing areas that contain private or system files. Developers have applied these enhancements to OpenBSD versions of many common applications, such as <a href="/wiki/Tcpdump" title="Tcpdump">tcpdump</a>, <a href="/wiki/File_(command)" title="File (command)">file</a>, <a href="/wiki/Tmux" title="Tmux">tmux</a>, <a href="/wiki/OpenSMTPD" title="OpenSMTPD">smtpd</a>, and <a href="/wiki/Syslogd" class="mw-redirect" title="Syslogd">syslogd</a>.<sup id="cite_ref-openbsd_innovations_privsep_49-0" class="reference"><a href="#cite_note-openbsd_innovations_privsep-49"><span class="cite-bracket">[</span>47<span class="cite-bracket">]</span></a></sup> </p><p>OpenBSD developers were instrumental in the creation and development of <a href="/wiki/OpenSSH" title="OpenSSH">OpenSSH</a> (aka OpenBSD Secure Shell), which is developed in the OpenBSD CVS repositories. OpenBSD Secure Shell is based on the original <a href="/wiki/Secure_Shell" title="Secure Shell">SSH</a>.<sup id="cite_ref-openssh-history_50-0" class="reference"><a href="#cite_note-openssh-history-50"><span class="cite-bracket">[</span>48<span class="cite-bracket">]</span></a></sup> It first appeared in OpenBSD 2.6 and is now by far the most popular SSH client and server, available on many operating systems.<sup id="cite_ref-openssh-usage_51-0" class="reference"><a href="#cite_note-openssh-usage-51"><span class="cite-bracket">[</span>49<span class="cite-bracket">]</span></a></sup> </p><p>The project has a policy of continually auditing source code for problems, work that developer Marc Espie has described as "never finished ... more a question of process than of a specific bug being hunted." He went on to list several typical steps once a bug is found, including examining the entire source tree for the same and similar issues, "try[ing] to find out whether the documentation ought to be amended", and investigating whether "it's possible to augment the <a href="/wiki/Compiler" title="Compiler">compiler</a> to warn against this specific problem."<sup id="cite_ref-interview-espie_52-0" class="reference"><a href="#cite_note-interview-espie-52"><span class="cite-bracket">[</span>50<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Security_record">Security record</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=9" title="Edit section: Security record" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>The OpenBSD website features a prominent reference to the system's security record. Until June 2002, it read: </p> <style data-mw-deduplicate="TemplateStyles:r1244412712">.mw-parser-output .templatequote{overflow:hidden;margin:1em 0;padding:0 32px}.mw-parser-output .templatequotecite{line-height:1.5em;text-align:left;margin-top:0}@media(min-width:500px){.mw-parser-output .templatequotecite{padding-left:1.6em}}</style><blockquote class="templatequote"><p>Five years without a remote hole in the default install!</p></blockquote> <p>In June 2002, Mark Dowd of <a href="/wiki/Internet_Security_Systems" title="Internet Security Systems">Internet Security Systems</a> disclosed a bug in the OpenSSH code implementing <a href="/wiki/Challenge%E2%80%93response_authentication" title="Challenge–response authentication">challenge–response authentication</a>.<sup id="cite_ref-53" class="reference"><a href="#cite_note-53"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup> This <a href="/wiki/Vulnerability_(computer_science)" class="mw-redirect" title="Vulnerability (computer science)">vulnerability</a> in the OpenBSD default installation allowed an attacker remote access to the <a href="/wiki/Superuser" title="Superuser">root</a> account, which was extremely serious not only to OpenBSD, but also to the large number of other operating systems that were using OpenSSH by that time.<sup id="cite_ref-54" class="reference"><a href="#cite_note-54"><span class="cite-bracket">[</span>52<span class="cite-bracket">]</span></a></sup> This problem necessitated the adjustment of the slogan on the OpenBSD website to: </p> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1244412712"><blockquote class="templatequote"><p>One remote hole in the default install, in nearly 6 years!</p></blockquote> <p>The quote remained unchanged as time passed, until on 13 March 2007, when Alfredo Ortega of Core Security Technologies disclosed a network-related remote vulnerability.<sup id="cite_ref-55" class="reference"><a href="#cite_note-55"><span class="cite-bracket">[</span>53<span class="cite-bracket">]</span></a></sup> The quote was subsequently changed to: </p> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1244412712"><blockquote class="templatequote"><p>Only two remote holes in the default install, in a heck of a long time!</p></blockquote> <p>This statement has been criticized because the default install contains few running services, and many use cases require additional services.<sup id="cite_ref-56" class="reference"><a href="#cite_note-56"><span class="cite-bracket">[</span>54<span class="cite-bracket">]</span></a></sup> Also, because the ports tree contains unaudited <a href="/wiki/Third-party_software" class="mw-redirect" title="Third-party software">third-party software</a>, it is easy for users to compromise security by installing or improperly configuring packages. However, the project maintains that the slogan is <i>intended</i> to refer to a default install and that it is correct by that measure. </p><p>One of the fundamental ideas behind OpenBSD is a drive for systems to be simple, clean, and secure by default. The default install is quite minimal, which the project states is to ensure novice users "do not need to become security experts overnight",<sup id="cite_ref-security_57-0" class="reference"><a href="#cite_note-security-57"><span class="cite-bracket">[</span>55<span class="cite-bracket">]</span></a></sup> which fits with open-source and <a href="/wiki/Code_audit" title="Code audit">code auditing</a> practices considered important elements of a security system.<sup id="cite_ref-oss-good-for-security_58-0" class="reference"><a href="#cite_note-oss-good-for-security-58"><span class="cite-bracket">[</span>56<span class="cite-bracket">]</span></a></sup> Additional services are to be enabled manually to make users think of the security implications first. </p> <div class="mw-heading mw-heading3"><h3 id="Alleged_backdoor">Alleged backdoor</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=10" title="Edit section: Alleged backdoor" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>On 11 December 2010, Gregory Perry, a former technical consultant for the <a href="/wiki/Federal_Bureau_of_Investigation" title="Federal Bureau of Investigation">Federal Bureau of Investigation</a> (FBI), emailed De Raadt alleging that the FBI had paid some OpenBSD ex-developers 10 years prior to insert backdoors into the <a href="/wiki/OpenBSD_Cryptographic_Framework" title="OpenBSD Cryptographic Framework">OpenBSD Cryptographic Framework</a>. De Raadt made the email public on 14 December by forwarding it to the openbsd-tech mailing list and suggested an audit of the <a href="/wiki/IPsec" title="IPsec">IPsec</a> codebase.<sup id="cite_ref-allegations-ipsec_59-0" class="reference"><a href="#cite_note-allegations-ipsec-59"><span class="cite-bracket">[</span>57<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-osnews-ipsec_60-0" class="reference"><a href="#cite_note-osnews-ipsec-60"><span class="cite-bracket">[</span>58<span class="cite-bracket">]</span></a></sup> De Raadt's response was skeptical of the report and he invited all developers to independently review the relevant code. In the weeks that followed, bugs were fixed but no evidence of backdoors was found.<sup id="cite_ref-no-ipsec-backdoor_61-0" class="reference"><a href="#cite_note-no-ipsec-backdoor-61"><span class="cite-bracket">[</span>59<span class="cite-bracket">]</span></a></sup> De Raadt stated "I believe that NetSec was probably contracted to write backdoors as alleged. If those were written, I don't believe they made it into our tree. They might have been deployed as their own product."<sup id="cite_ref-informationweek_ipsec_62-0" class="reference"><a href="#cite_note-informationweek_ipsec-62"><span class="cite-bracket">[</span>60<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Criticisms">Criticisms</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=11" title="Edit section: Criticisms" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>In December 2017, Ilja van Sprundel, director at <a href="/wiki/IOActive" title="IOActive">IOActive</a>, gave a talk at the <a href="/wiki/Chaos_Communication_Congress" title="Chaos Communication Congress">CCC</a><sup id="cite_ref-63" class="reference"><a href="#cite_note-63"><span class="cite-bracket">[</span>61<span class="cite-bracket">]</span></a></sup> as well as <a href="/wiki/DEF_CON" title="DEF CON">DEF CON</a>,<sup id="cite_ref-64" class="reference"><a href="#cite_note-64"><span class="cite-bracket">[</span>62<span class="cite-bracket">]</span></a></sup> entitled "Are all BSDs created equally? — A survey of BSD kernel vulnerabilities", in which he stated that although OpenBSD was the clear winner of the BSDs in terms of security, "Bugs are still easy to find in those kernels, even in OpenBSD". </p><p>Two years later, in 2019, a talk named "A systematic evaluation of OpenBSD's mitigations" was given<sup id="cite_ref-65" class="reference"><a href="#cite_note-65"><span class="cite-bracket">[</span>63<span class="cite-bracket">]</span></a></sup> at the CCC, arguing that while OpenBSD has some effective mitigations, a significant part of them are "useless at best and based on pure luck and superstition", arguing for a more rational approach when it comes to designing them.<sup id="cite_ref-66" class="reference"><a href="#cite_note-66"><span class="cite-bracket">[</span>64<span class="cite-bracket">]</span></a></sup> </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(5)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Subprojects">Subprojects</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=12" title="Edit section: Subprojects" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-5 collapsible-block" id="mf-section-5"> <p>Many open source projects started as components of OpenBSD, including: </p> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col"> <ul><li><a href="/wiki/Bioctl" title="Bioctl">bioctl</a>, a generic <a href="/wiki/RAID" title="RAID">RAID</a> management interface similar to <a href="/wiki/Ifconfig" title="Ifconfig">ifconfig</a></li> <li><a href="/wiki/Common_Address_Redundancy_Protocol" title="Common Address Redundancy Protocol">CARP</a>, a free alternative to <a href="/wiki/Cisco_Systems" class="mw-redirect" title="Cisco Systems">Cisco</a>'s patented <a href="/wiki/Hot_Standby_Router_Protocol" title="Hot Standby Router Protocol">HSRP</a>/<a href="/wiki/Virtual_Router_Redundancy_Protocol" title="Virtual Router Redundancy Protocol">VRRP</a> redundancy protocols</li> <li><a href="/wiki/Cwm_(window_manager)" title="Cwm (window manager)">cwm</a>, a stacking window manager</li> <li><a href="/wiki/Doas" title="Doas">doas</a>, a safer replacement for <a href="/wiki/Sudo" title="Sudo">sudo</a></li> <li><a href="/w/index.php?title=OpenBSD_httpd&amp;action=edit&amp;redlink=1" class="new" title="OpenBSD httpd (page does not exist)">OpenBSD httpd</a>,<sup id="cite_ref-67" class="reference"><a href="#cite_note-67"><span class="cite-bracket">[</span>65<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-68" class="reference"><a href="#cite_note-68"><span class="cite-bracket">[</span>66<span class="cite-bracket">]</span></a></sup> an implementation of <a href="/wiki/Httpd" title="Httpd">httpd</a></li> <li><a href="/wiki/Hw.sensors" title="Hw.sensors">hw.sensors</a>, a sensors framework used by over 100 drivers</li> <li><a href="/wiki/LibreSSL" title="LibreSSL">LibreSSL</a>, an implementation of the <a href="/wiki/Secure_Sockets_Layer" class="mw-redirect" title="Secure Sockets Layer">SSL</a> and <a href="/wiki/Transport_Layer_Security" title="Transport Layer Security">TLS</a> protocols, forked from <a href="/wiki/OpenSSL" title="OpenSSL">OpenSSL</a> 1.0.1g<sup id="cite_ref-69" class="reference"><a href="#cite_note-69"><span class="cite-bracket">[</span>67<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/OpenBGPD" title="OpenBGPD">OpenBGPD</a>, an implementation of <a href="/wiki/Border_Gateway_Protocol" title="Border Gateway Protocol">BGP-4</a><sup id="cite_ref-openbgpd_70-0" class="reference"><a href="#cite_note-openbgpd-70"><span class="cite-bracket">[</span>68<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/OpenIKED" title="OpenIKED">OpenIKED</a>, an implementation of <a href="/wiki/IKEv2" class="mw-redirect" title="IKEv2">IKEv2</a><sup id="cite_ref-71" class="reference"><a href="#cite_note-71"><span class="cite-bracket">[</span>69<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/OpenNTPD" title="OpenNTPD">OpenNTPD</a>, a simpler alternative to ntp.org's <a href="/wiki/Network_Time_Protocol" title="Network Time Protocol">NTP</a> daemon<sup id="cite_ref-72" class="reference"><a href="#cite_note-72"><span class="cite-bracket">[</span>70<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/OpenOSPFD" title="OpenOSPFD">OpenOSPFD</a>, an implementation of <a href="/wiki/Open_Shortest_Path_First" title="Open Shortest Path First">OSPF</a><sup id="cite_ref-openbgpd_70-1" class="reference"><a href="#cite_note-openbgpd-70"><span class="cite-bracket">[</span>68<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/OpenSMTPD" title="OpenSMTPD">OpenSMTPD</a>, an <a href="/wiki/Simple_Mail_Transfer_Protocol" title="Simple Mail Transfer Protocol">SMTP</a> daemon with <a href="/wiki/IPv4" title="IPv4">IPv4</a>/<a href="/wiki/IPv6" title="IPv6">IPv6</a>, <a href="/wiki/Pluggable_Authentication_Modules" class="mw-redirect" title="Pluggable Authentication Modules">PAM</a>, <a href="/wiki/Maildir" title="Maildir">Maildir</a>, and virtual domains support<sup id="cite_ref-73" class="reference"><a href="#cite_note-73"><span class="cite-bracket">[</span>71<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/OpenSSH" title="OpenSSH">OpenSSH</a>, an implementation of <a href="/wiki/Secure_Shell" title="Secure Shell">SSH</a><sup id="cite_ref-74" class="reference"><a href="#cite_note-74"><span class="cite-bracket">[</span>72<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/PF_(firewall)" title="PF (firewall)">PF</a>, an <a href="/wiki/IPv4" title="IPv4">IPv4</a>/<a href="/wiki/IPv6" title="IPv6">IPv6</a> stateful firewall with <a href="/wiki/Network_address_translation" title="Network address translation">NAT</a>, <a href="/wiki/Port_address_translation" class="mw-redirect" title="Port address translation">PAT</a>, <a href="/wiki/Quality_of_service" title="Quality of service">QoS</a> and traffic normalization support</li> <li><a href="/wiki/Pfsync" title="Pfsync">pfsync</a>, a firewall state synchronization protocol for <a href="/wiki/PF_(firewall)" title="PF (firewall)">PF</a> with <a href="/wiki/High_availability" title="High availability">high availability</a> support using <a href="/wiki/Common_Address_Redundancy_Protocol" title="Common Address Redundancy Protocol">CARP</a></li> <li><a href="/wiki/Sndio" title="Sndio">sndio</a>, a compact audio and MIDI framework</li> <li><a href="/wiki/Spamd" title="Spamd">spamd</a>, a spam filter with <a href="/wiki/Greylisting_(email)" title="Greylisting (email)">greylisting</a> support designed to inter-operate with <a href="/wiki/PF_(firewall)" title="PF (firewall)">PF</a></li> <li><a href="/wiki/Xenocara" title="Xenocara">Xenocara</a>, a customized <a href="/wiki/X.Org_Server" title="X.Org Server">X.Org</a> build infrastructure<sup id="cite_ref-xenocara_31-1" class="reference"><a href="#cite_note-xenocara-31"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup></li></ul> </div> <p>Some subsystems have been integrated into other BSD operating systems,<sup id="cite_ref-freebsd_openssh-base_75-0" class="reference"><a href="#cite_note-freebsd_openssh-base-75"><span class="cite-bracket">[</span>73<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-netbsd_openssh-base_76-0" class="reference"><a href="#cite_note-netbsd_openssh-base-76"><span class="cite-bracket">[</span>74<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-dragonflybsd_openssh-base_77-0" class="reference"><a href="#cite_note-dragonflybsd_openssh-base-77"><span class="cite-bracket">[</span>75<span class="cite-bracket">]</span></a></sup> and many are available as packages for use in other Unix-like systems.<sup id="cite_ref-archlinux_openssh-portable_78-0" class="reference"><a href="#cite_note-archlinux_openssh-portable-78"><span class="cite-bracket">[</span>76<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-opensuse_openssh-portable_79-0" class="reference"><a href="#cite_note-opensuse_openssh-portable-79"><span class="cite-bracket">[</span>77<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-debian_openssh-portable_80-0" class="reference"><a href="#cite_note-debian_openssh-portable-80"><span class="cite-bracket">[</span>78<span class="cite-bracket">]</span></a></sup> </p><p>Linux administrator Carlos Fenollosa commented on moving from Linux to OpenBSD that the system is faithful to the <a href="/wiki/Unix_philosophy" title="Unix philosophy">Unix philosophy</a> of small, simple tools that work together well: "Some base components are not as feature-rich, on purpose. Since 99% of the servers don't need the flexibility of Apache, OpenBSD's httpd will work fine, be more secure, and probably faster".<sup id="cite_ref-Fenollosa_81-0" class="reference"><a href="#cite_note-Fenollosa-81"><span class="cite-bracket">[</span>79<span class="cite-bracket">]</span></a></sup> He characterized the developer community's attitude to components as: "When the community decides that some module sucks, they develop a new one from scratch. OpenBSD has its own NTPd, SMTPd and, more recently, HTTPd. They work great".<sup id="cite_ref-Fenollosa_81-1" class="reference"><a href="#cite_note-Fenollosa-81"><span class="cite-bracket">[</span>79<span class="cite-bracket">]</span></a></sup> As a result, OpenBSD is relatively prolific in creating components that become widely reused by other systems. </p><p>OpenBSD runs nearly all of its standard <a href="/wiki/Daemon_(computing)" title="Daemon (computing)">daemons</a> within <a href="/wiki/Chroot" title="Chroot">chroot</a> and <a href="/wiki/Privilege_separation" title="Privilege separation">privsep</a> security structures by default, as part of hardening the base system.<sup id="cite_ref-Fenollosa_81-2" class="reference"><a href="#cite_note-Fenollosa-81"><span class="cite-bracket">[</span>79<span class="cite-bracket">]</span></a></sup> </p><p>The <a href="/wiki/Calgary_Internet_Exchange" title="Calgary Internet Exchange">Calgary Internet Exchange</a> was formed in 2012, in part to serve the needs of the OpenBSD project.<sup id="cite_ref-cuug_82-0" class="reference"><a href="#cite_note-cuug-82"><span class="cite-bracket">[</span>80<span class="cite-bracket">]</span></a></sup> </p><p>In 2017, Isotop,<sup id="cite_ref-83" class="reference"><a href="#cite_note-83"><span class="cite-bracket">[</span>81<span class="cite-bracket">]</span></a></sup> a French project aiming to adapt OpenBSD to desktops and laptops, using <a href="/wiki/Xfce" title="Xfce">xfce</a> then <a href="/wiki/Dwm" title="Dwm">dwm</a>, started to be developed.<sup id="cite_ref-84" class="reference"><a href="#cite_note-84"><span class="cite-bracket">[</span>82<span class="cite-bracket">]</span></a></sup> </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(6)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Third-party_components">Third-party components</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=13" title="Edit section: Third-party components" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-6 collapsible-block" id="mf-section-6"> <p>OpenBSD includes a number of <a href="/wiki/Third-party_software_component" title="Third-party software component">third-party components</a>, many with OpenBSD-specific patches,<sup id="cite_ref-6.0-release_35-1" class="reference"><a href="#cite_note-6.0-release-35"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> such as <a href="/wiki/X.Org_Server" title="X.Org Server">X.Org</a>, <a href="/wiki/Clang" title="Clang">Clang</a><sup id="cite_ref-man_clang-local_85-0" class="reference"><a href="#cite_note-man_clang-local-85"><span class="cite-bracket">[</span>83<span class="cite-bracket">]</span></a></sup> (the default <a href="/wiki/Compiler" title="Compiler">compiler</a> on several <a href="/wiki/Computer_architecture" title="Computer architecture">architectures</a>), <a href="/wiki/GNU_Compiler_Collection" title="GNU Compiler Collection">GCC</a>,<sup id="cite_ref-man_gcc-local_45-1" class="reference"><a href="#cite_note-man_gcc-local-45"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-compiler-version_86-0" class="reference"><a href="#cite_note-compiler-version-86"><span class="cite-bracket">[</span>note 3<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Perl" title="Perl">Perl</a>, <a href="/wiki/NSD" title="NSD">NSD</a>, <a href="/wiki/Unbound_(DNS_server)" title="Unbound (DNS server)">Unbound</a>, <a href="/wiki/Ncurses" title="Ncurses">ncurses</a>, <a href="/wiki/GNU_binutils" class="mw-redirect" title="GNU binutils">GNU binutils</a>, <a href="/wiki/GNU_Debugger" title="GNU Debugger">GDB</a>, and <a href="/wiki/AWK" title="AWK">AWK</a>. </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(7)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Development">Development</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=14" title="Edit section: Development" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-7 collapsible-block" id="mf-section-7"> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:OpenBSD_hackers_at_c2k%2B%2B_at_MIT.jpg" class="mw-file-description"><noscript><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/61/OpenBSD_hackers_at_c2k%2B%2B_at_MIT.jpg/220px-OpenBSD_hackers_at_c2k%2B%2B_at_MIT.jpg" decoding="async" width="220" height="165" class="mw-file-element" data-file-width="640" data-file-height="480"></noscript><span class="lazy-image-placeholder" style="width: 220px;height: 165px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/6/61/OpenBSD_hackers_at_c2k%2B%2B_at_MIT.jpg/220px-OpenBSD_hackers_at_c2k%2B%2B_at_MIT.jpg" data-width="220" data-height="165" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/61/OpenBSD_hackers_at_c2k%2B%2B_at_MIT.jpg/330px-OpenBSD_hackers_at_c2k%2B%2B_at_MIT.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/61/OpenBSD_hackers_at_c2k%2B%2B_at_MIT.jpg/440px-OpenBSD_hackers_at_c2k%2B%2B_at_MIT.jpg 2x" data-class="mw-file-element">&nbsp;</span></a><figcaption>OpenBSD developers at c2k1 <a href="/wiki/Hackathon" title="Hackathon">hackathon</a> at <a href="/wiki/Massachusetts_Institute_of_Technology" title="Massachusetts Institute of Technology">MIT</a>, June 2001</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:S2k17.gif" class="mw-file-description"><noscript><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/S2k17.gif/220px-S2k17.gif" decoding="async" width="220" height="220" class="mw-file-element" data-file-width="600" data-file-height="600"></noscript><span class="lazy-image-placeholder" style="width: 220px;height: 220px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/S2k17.gif/220px-S2k17.gif" data-width="220" data-height="220" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/S2k17.gif/330px-S2k17.gif 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/S2k17.gif/440px-S2k17.gif 2x" data-class="mw-file-element">&nbsp;</span></a><figcaption>OpenBSD hackathon s2k17</figcaption></figure> <p>Development is continuous, and team management is open and tiered. Anyone with appropriate skills may contribute, with commit rights being awarded on merit and De Raadt acting as coordinator.<sup id="cite_ref-absolute_openbsd_33-1" class="reference"><a href="#cite_note-absolute_openbsd-33"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup><sup class="reference nowrap"><span title="Page: xxxv">: xxxv </span></sup> Two official releases are made per year, with the version number incremented by 0.1,<sup id="cite_ref-deraadt_interview_200605_87-0" class="reference"><a href="#cite_note-deraadt_interview_200605-87"><span class="cite-bracket">[</span>84<span class="cite-bracket">]</span></a></sup> and these are each supported for twelve months (two release cycles).<sup id="cite_ref-openbsd_faq_building_system_source_88-0" class="reference"><a href="#cite_note-openbsd_faq_building_system_source-88"><span class="cite-bracket">[</span>85<span class="cite-bracket">]</span></a></sup> Snapshot releases are also available at frequent intervals. </p><p>Maintenance patches for supported releases may be applied using <a href="/w/index.php?title=Syspatch&amp;action=edit&amp;redlink=1" class="new" title="Syspatch (page does not exist)">syspatch</a>, manually or by updating the system against the patch branch of the <a href="/wiki/Concurrent_Versions_System" title="Concurrent Versions System">CVS</a> source repository for that release.<sup id="cite_ref-openbsd_faq_system_management_89-0" class="reference"><a href="#cite_note-openbsd_faq_system_management-89"><span class="cite-bracket">[</span>86<span class="cite-bracket">]</span></a></sup> Alternatively, a system administrator may opt to upgrade to the next snapshot release using <a href="/w/index.php?title=Sysupgrade&amp;action=edit&amp;redlink=1" class="new" title="Sysupgrade (page does not exist)">sysupgrade</a>, or by using the <style data-mw-deduplicate="TemplateStyles:r886049734">.mw-parser-output .monospaced{font-family:monospace,monospace}</style><span class="monospaced">-current</span> branch of the CVS repository, in order to gain pre-release access to recently added features. The sysupgrade tool can also upgrade to the latest stable release version. </p><p>The generic OpenBSD kernel provided by default is strongly recommended for end users, in contrast to operating systems that recommend user kernel customization.<sup id="cite_ref-faq9_90-0" class="reference"><a href="#cite_note-faq9-90"><span class="cite-bracket">[</span>87<span class="cite-bracket">]</span></a></sup> </p><p>Packages outside the base system are maintained by CVS through a <a href="/wiki/Ports_collection" title="Ports collection">ports tree</a> and are the responsibility of the individual maintainers, known as porters. As well as keeping the current branch up to date, porters are expected to apply appropriate bug-fixes and maintenance fixes to branches of their package for OpenBSD's supported releases. Ports are generally not subject to the same continuous auditing as the base system due to lack of manpower. </p><p>Binary packages are built centrally from the ports tree for each architecture. This process is applied for the current version, for each supported release, and for each snapshot. Administrators are recommended to use the package mechanism rather than build the package from the ports tree, unless they need to perform their own source changes. </p><p>OpenBSD's developers regularly meet at special events called <a href="/wiki/Hackathon" title="Hackathon">hackathons</a>,<sup id="cite_ref-openbsd-hackathons_91-0" class="reference"><a href="#cite_note-openbsd-hackathons-91"><span class="cite-bracket">[</span>88<span class="cite-bracket">]</span></a></sup> where they "sit down and code", emphasizing productivity.<sup id="cite_ref-deraadt_interview_200603_92-0" class="reference"><a href="#cite_note-deraadt_interview_200603-92"><span class="cite-bracket">[</span>89<span class="cite-bracket">]</span></a></sup> </p><p>Most new releases include a song.<sup id="cite_ref-lyrics_93-0" class="reference"><a href="#cite_note-lyrics-93"><span class="cite-bracket">[</span>90<span class="cite-bracket">]</span></a></sup> </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(8)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Open_source_and_open_documentation">Open source and open documentation</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=15" title="Edit section: Open source and open documentation" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-8 collapsible-block" id="mf-section-8"> <p>OpenBSD is known for its high-quality documentation.<sup id="cite_ref-chisnall2006_94-0" class="reference"><a href="#cite_note-chisnall2006-94"><span class="cite-bracket">[</span>91<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-smith2013_95-0" class="reference"><a href="#cite_note-smith2013-95"><span class="cite-bracket">[</span>92<span class="cite-bracket">]</span></a></sup> </p><p>When OpenBSD was created, De Raadt decided that the <a href="/wiki/Source_code" title="Source code">source code</a> should be available for anyone to read. At the time, a small team of developers generally had access to a project's source code.<sup id="cite_ref-cvs_96-0" class="reference"><a href="#cite_note-cvs-96"><span class="cite-bracket">[</span>93<span class="cite-bracket">]</span></a></sup> Chuck Cranor<sup id="cite_ref-cranor_97-0" class="reference"><a href="#cite_note-cranor-97"><span class="cite-bracket">[</span>94<span class="cite-bracket">]</span></a></sup> and De Raadt concluded this practice was "counter to the open source philosophy" and inconvenient to potential contributors. Together, Cranor and De Raadt set up the first public, anonymous <a href="/wiki/Revision_control_system" class="mw-redirect" title="Revision control system">revision control system</a> server. De Raadt's decision allowed users to "take a more active role", and established the project's commitment to open access.<sup id="cite_ref-cvs_96-1" class="reference"><a href="#cite_note-cvs-96"><span class="cite-bracket">[</span>93<span class="cite-bracket">]</span></a></sup> OpenBSD is notable for its continued use of <a href="/wiki/Concurrent_Versions_System" title="Concurrent Versions System">CVS</a> (more precisely an unreleased, OpenBSD-managed fork named OpenCVS), when most other projects that used it have migrated to other systems.<sup id="cite_ref-98" class="reference"><a href="#cite_note-98"><span class="cite-bracket">[</span>95<span class="cite-bracket">]</span></a></sup> </p><p>OpenBSD does not include <a href="/wiki/Closed_source" class="mw-redirect" title="Closed source">closed source</a> binary drivers in the source tree, nor does it include code requiring the signing of <a href="/wiki/Non-disclosure_agreement" title="Non-disclosure agreement">non-disclosure agreements</a>.<sup id="cite_ref-openbsd_goals_code_99-0" class="reference"><a href="#cite_note-openbsd_goals_code-99"><span class="cite-bracket">[</span>96<span class="cite-bracket">]</span></a></sup> According to the <a href="/wiki/GNU_Project" title="GNU Project">GNU Project</a>, OpenBSD includes small "blobs" of proprietary object code as device firmware.<sup id="cite_ref-100" class="reference"><a href="#cite_note-100"><span class="cite-bracket">[</span>97<span class="cite-bracket">]</span></a></sup> </p><p>Since OpenBSD is based in Canada, no United States export restrictions on cryptography apply, allowing the distribution to make full use of modern algorithms for encryption. For example, the swap space is divided into small sections and each section is encrypted with its own key, ensuring that sensitive data does not leak into an insecure part of the system.<sup id="cite_ref-closer-look-openbsd_19-1" class="reference"><a href="#cite_note-closer-look-openbsd-19"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> </p><p>OpenBSD randomizes various behaviors of applications, making them less predictable and thus more difficult to attack. For example, PIDs are created and associated randomly to processes; the <code>bind</code> <a href="/wiki/System_call" title="System call">system call</a> uses random <a href="/wiki/Port_(computer_networking)" title="Port (computer networking)">port numbers</a>; files are created with random <a href="/wiki/Inode" title="Inode">inode</a> numbers; and IP datagrams have random identifiers.<sup id="cite_ref-crypto-openbsd-overview_randomness_101-0" class="reference"><a href="#cite_note-crypto-openbsd-overview_randomness-101"><span class="cite-bracket">[</span>98<span class="cite-bracket">]</span></a></sup> This approach also helps expose bugs in the kernel and in user space programs. </p><p>The OpenBSD policy on openness extends to hardware documentation: in the slides for a December 2006 presentation, De Raadt explained that without it "developers often make mistakes writing drivers", and pointed out that "the [oh my god, I got it to work] rush is harder to achieve, and some developers just give up."<sup id="cite_ref-deraadtopencon06_102-0" class="reference"><a href="#cite_note-deraadtopencon06-102"><span class="cite-bracket">[</span>99<span class="cite-bracket">]</span></a></sup> He went on to say that vendor-supplied binary drivers are unacceptable for inclusion in OpenBSD, that they have "no trust of vendor binaries running in our kernel" and that there is "no way to fix [them] ... when they break."<sup id="cite_ref-deraadtopencon06_102-1" class="reference"><a href="#cite_note-deraadtopencon06-102"><span class="cite-bracket">[</span>99<span class="cite-bracket">]</span></a></sup> </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(9)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Licensing">Licensing</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=16" title="Edit section: Licensing" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-9 collapsible-block" id="mf-section-9"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Comparison_of_free_and_open-source_software_licenses" title="Comparison of free and open-source software licenses">Comparison of free and open-source software licenses</a> and <a href="/wiki/Free_software_license" class="mw-redirect" title="Free software license">Free software license</a></div> <p>OpenBSD maintains a strict <a href="/wiki/Software_licensing" class="mw-redirect" title="Software licensing">license</a> policy,<sup id="cite_ref-policy_3-1" class="reference"><a href="#cite_note-policy-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> preferring the <a href="/wiki/ISC_license" title="ISC license">ISC license</a> and other variants of the <a href="/wiki/Simplified_BSD_License" class="mw-redirect" title="Simplified BSD License">BSD license</a>. The project attempts to "maintain the spirit of the original Berkeley Unix <a href="/wiki/Copyright" title="Copyright">copyrights</a>," which permitted a "relatively un-encumbered Unix source distribution."<sup id="cite_ref-policy_3-2" class="reference"><a href="#cite_note-policy-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> The widely used <a href="/wiki/Apache_License" title="Apache License">Apache License</a> and <a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GNU General Public License</a> are considered overly restrictive.<sup id="cite_ref-bsd-cognoscenti-on-linux_103-0" class="reference"><a href="#cite_note-bsd-cognoscenti-on-linux-103"><span class="cite-bracket">[</span>100<span class="cite-bracket">]</span></a></sup> </p><p>In June 2001, triggered by concerns over Darren Reed's modification of IPFilter's license wording, a systematic license audit of the OpenBSD ports and source trees was undertaken.<sup id="cite_ref-license-disagreement_104-0" class="reference"><a href="#cite_note-license-disagreement-104"><span class="cite-bracket">[</span>101<span class="cite-bracket">]</span></a></sup> Code in more than a hundred files throughout the system was found to be unlicensed, ambiguously licensed or in use against the terms of the license. To ensure that all licenses were properly adhered to, an attempt was made to contact all the relevant copyright holders: some pieces of code were removed, many were replaced, and others, such as the <a href="/wiki/Multicast" title="Multicast">multicast</a> <a href="/wiki/Routing" title="Routing">routing</a> tools <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">mrinfo</span> and <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886049734"><span class="monospaced">map-mbone</span>, were <a href="/wiki/Software_relicensing" title="Software relicensing">relicensed</a> so that OpenBSD could continue to use them.<sup id="cite_ref-cvsweb_mrinfo_xerox_105-0" class="reference"><a href="#cite_note-cvsweb_mrinfo_xerox-105"><span class="cite-bracket">[</span>102<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-cvsweb_map-mbone_xerox_106-0" class="reference"><a href="#cite_note-cvsweb_map-mbone_xerox-106"><span class="cite-bracket">[</span>103<span class="cite-bracket">]</span></a></sup> Also removed during this audit was all software produced by <a href="/wiki/Daniel_J._Bernstein" title="Daniel J. Bernstein">Daniel J. Bernstein</a>. At the time, Bernstein requested that all modified versions of his code be approved by him prior to redistribution, a requirement to which OpenBSD developers were unwilling to devote time or effort.<sup id="cite_ref-djb-ports-removed-1_107-0" class="reference"><a href="#cite_note-djb-ports-removed-1-107"><span class="cite-bracket">[</span>104<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-djb-ports-removed-2_108-0" class="reference"><a href="#cite_note-djb-ports-removed-2-108"><span class="cite-bracket">[</span>105<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-djb-ports-removed-3_109-0" class="reference"><a href="#cite_note-djb-ports-removed-3-109"><span class="cite-bracket">[</span>106<span class="cite-bracket">]</span></a></sup> </p><p>Because of licensing concerns, the OpenBSD team has reimplemented software from scratch or adopted suitable existing software. For example, OpenBSD developers created the <a href="/wiki/PF_(firewall)" title="PF (firewall)">PF</a> <a href="/wiki/Packet_filter" class="mw-redirect" title="Packet filter">packet filter</a> after unacceptable restrictions were imposed on <a href="/wiki/IPFilter" title="IPFilter">IPFilter</a>. PF first appeared in OpenBSD 3.0<sup id="cite_ref-pf-design-paper_110-0" class="reference"><a href="#cite_note-pf-design-paper-110"><span class="cite-bracket">[</span>107<span class="cite-bracket">]</span></a></sup> and is now available in many other operating systems.<sup id="cite_ref-pf-book_111-0" class="reference"><a href="#cite_note-pf-book-111"><span class="cite-bracket">[</span>108<span class="cite-bracket">]</span></a></sup> OpenBSD developers have also replaced GPL-licensed tools (such as <a href="/wiki/Concurrent_Versions_System" title="Concurrent Versions System">CVS</a> and <a href="/wiki/Pkg-config" title="Pkg-config">pkg-config</a>) with <a href="/wiki/Permissive_software_license" title="Permissive software license">permissively licensed</a> equivalents.<sup id="cite_ref-112" class="reference"><a href="#cite_note-112"><span class="cite-bracket">[</span>109<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-113" class="reference"><a href="#cite_note-113"><span class="cite-bracket">[</span>110<span class="cite-bracket">]</span></a></sup> </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(10)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Funding">Funding</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=17" title="Edit section: Funding" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-10 collapsible-block" id="mf-section-10"> <p>Although the operating system and its portable components are used in commercial products, De Raadt says that little of the funding for the project comes from the industry: "traditionally all our funding has come from user donations and users buying our CDs (our other products don't really make us much money). Obviously, that has not been a lot of money."<sup id="cite_ref-deraadt_interview_200605_87-1" class="reference"><a href="#cite_note-deraadt_interview_200605-87"><span class="cite-bracket">[</span>84<span class="cite-bracket">]</span></a></sup> </p><p>For a two-year period in the early 2000s, the project received funding from <a href="/wiki/DARPA" title="DARPA">DARPA</a>, which "paid the salaries of 5 people to work completely full-time, bought about $30k in hardware, and paid for 3 hackathons", from the <a href="/wiki/POSSE_project" title="POSSE project">POSSE project</a>.<sup id="cite_ref-deraadt_interview_200605_87-2" class="reference"><a href="#cite_note-deraadt_interview_200605-87"><span class="cite-bracket">[</span>84<span class="cite-bracket">]</span></a></sup> </p><p>In 2006, the OpenBSD project experienced financial difficulties.<sup id="cite_ref-slashdot_financial_danger_114-0" class="reference"><a href="#cite_note-slashdot_financial_danger-114"><span class="cite-bracket">[</span>111<span class="cite-bracket">]</span></a></sup> The <a href="/wiki/Mozilla_Foundation" title="Mozilla Foundation">Mozilla Foundation</a><sup id="cite_ref-slashdot_mozilla_donate_115-0" class="reference"><a href="#cite_note-slashdot_mozilla_donate-115"><span class="cite-bracket">[</span>112<span class="cite-bracket">]</span></a></sup> and <a href="/wiki/GoDaddy" title="GoDaddy">GoDaddy</a><sup id="cite_ref-thehostingnews_godaddy_donate_116-0" class="reference"><a href="#cite_note-thehostingnews_godaddy_donate-116"><span class="cite-bracket">[</span>113<span class="cite-bracket">]</span></a></sup> are among the organizations that helped OpenBSD to survive. However, De Raadt expressed concern about the asymmetry of funding: "I think that contributions should have come first from the vendors, secondly from the corporate users, and thirdly from individual users. But the response has been almost entirely the opposite, with almost a 15-to-1 dollar ratio in favor of the little people. Thanks a lot, little people!"<sup id="cite_ref-deraadt_interview_200605_87-3" class="reference"><a href="#cite_note-deraadt_interview_200605-87"><span class="cite-bracket">[</span>84<span class="cite-bracket">]</span></a></sup> </p><p>On 14 January 2014, Bob Beck issued a request for funding to cover electrical costs. If sustainable funding was not found, Beck suggested the OpenBSD project would shut down.<sup id="cite_ref-funding-2014_117-0" class="reference"><a href="#cite_note-funding-2014-117"><span class="cite-bracket">[</span>114<span class="cite-bracket">]</span></a></sup> The project soon received a US$20,000 donation from Mircea Popescu, the Romanian creator of the MPEx bitcoin stock exchange, paid in <a href="/wiki/Bitcoin" title="Bitcoin">bitcoins</a>.<sup id="cite_ref-Bright_118-0" class="reference"><a href="#cite_note-Bright-118"><span class="cite-bracket">[</span>115<span class="cite-bracket">]</span></a></sup> The project raised US$150,000<sup id="cite_ref-2014_fundraising_campaign_119-0" class="reference"><a href="#cite_note-2014_fundraising_campaign-119"><span class="cite-bracket">[</span>116<span class="cite-bracket">]</span></a></sup> in response to the appeal, enabling it to pay its bills and securing its short-term future.<sup id="cite_ref-Bright_118-1" class="reference"><a href="#cite_note-Bright-118"><span class="cite-bracket">[</span>115<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="OpenBSD_Foundation">OpenBSD Foundation</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=18" title="Edit section: OpenBSD Foundation" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><table class="infobox vcard"><caption class="infobox-title fn org">OpenBSD Foundation</caption><tbody><tr><th scope="row" class="infobox-label" style="padding-right:0.6em;">Formation</th><td class="infobox-data note">July 25, 2007<span class="noprint">; 17 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">2007-07-25</span>)</span></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.6em;">Founder</th><td class="infobox-data">OpenBSD developers</td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.6em;">Legal status</th><td class="infobox-data"><a href="/wiki/Nonprofit_organization" title="Nonprofit organization">Nonprofit organization</a></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.6em;">Location</th><td class="infobox-data label"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><a href="/wiki/Canada" title="Canada">Canada</a></li></ul></div></td></tr><tr><th scope="row" class="infobox-label" style="padding-right:0.6em;">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="https://www.openbsdfoundation.org">www<wbr></wbr>.openbsdfoundation<wbr></wbr>.org</a></span></td></tr><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Autonomous_System_Number" class="mw-redirect" title="Autonomous System Number">ASN</a></th><td class="infobox-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"><ul><li><a rel="nofollow" class="external text" href="https://bgp.tools/as/22512">22512</a></li></ul></div></td></tr><tr style="display:none"><td colspan="2"> </td></tr></tbody></table> <p>The OpenBSD Foundation is a Canadian federal <a href="/wiki/Non-profit_organization" class="mw-redirect" title="Non-profit organization">non-profit organization</a> founded by the OpenBSD project as a "<a href="/wiki/Single_point_of_contact" class="mw-redirect" title="Single point of contact">single point of contact</a> for persons and organizations requiring a legal entity to deal with when they wish to support OpenBSD."<sup id="cite_ref-120" class="reference"><a href="#cite_note-120"><span class="cite-bracket">[</span>117<span class="cite-bracket">]</span></a></sup> It was announced to the public by OpenBSD developer Bob Beck on 25 July 2007. It also serves as a legal safeguard over other projects which are affiliated with OpenBSD, including <a href="/wiki/OpenSSH" title="OpenSSH">OpenSSH</a>, <a href="/wiki/OpenBGPD" title="OpenBGPD">OpenBGPD</a>, <a href="/wiki/OpenNTPD" title="OpenNTPD">OpenNTPD</a>, <a href="/wiki/OpenCVS" class="mw-redirect" title="OpenCVS">OpenCVS</a>, <a href="/wiki/OpenSMTPD" title="OpenSMTPD">OpenSMTPD</a> and <a href="/wiki/LibreSSL" title="LibreSSL">LibreSSL</a>.<sup id="cite_ref-121" class="reference"><a href="#cite_note-121"><span class="cite-bracket">[</span>118<span class="cite-bracket">]</span></a></sup> </p><p>Since 2014, several large contributions to the OpenBSD Foundation have come from corporations such as Microsoft,<sup id="cite_ref-register_rain_cash_122-0" class="reference"><a href="#cite_note-register_rain_cash-122"><span class="cite-bracket">[</span>119<span class="cite-bracket">]</span></a></sup> Facebook, and Google as well as the <a href="/wiki/Core_Infrastructure_Initiative" title="Core Infrastructure Initiative">Core Infrastructure Initiative</a>.<sup id="cite_ref-foundation_contributors_123-0" class="reference"><a href="#cite_note-foundation_contributors-123"><span class="cite-bracket">[</span>120<span class="cite-bracket">]</span></a></sup> </p><p>In 2015, <a href="/wiki/Microsoft" title="Microsoft">Microsoft</a> became the foundation's first gold level contributor<sup id="cite_ref-124" class="reference"><a href="#cite_note-124"><span class="cite-bracket">[</span>121<span class="cite-bracket">]</span></a></sup> donating between $25,000-50,000 to support development of OpenSSH, which had been integrated into <a href="/wiki/PowerShell" title="PowerShell">PowerShell</a> in July, and later into Windows Server in 2018.<sup id="cite_ref-125" class="reference"><a href="#cite_note-125"><span class="cite-bracket">[</span>122<span class="cite-bracket">]</span></a></sup> Other contributors include Google, Facebook and <a href="/wiki/DuckDuckGo" title="DuckDuckGo">DuckDuckGo</a>.<sup id="cite_ref-126" class="reference"><a href="#cite_note-126"><span class="cite-bracket">[</span>123<span class="cite-bracket">]</span></a></sup> </p><p>During the 2016 and 2017 fundraising campaigns, <a href="/wiki/Smartisan" title="Smartisan">Smartisan</a>, a Chinese company, was the leading financial contributor to the OpenBSD Foundation.<sup id="cite_ref-127" class="reference"><a href="#cite_note-127"><span class="cite-bracket">[</span>124<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-128" class="reference"><a href="#cite_note-128"><span class="cite-bracket">[</span>125<span class="cite-bracket">]</span></a></sup> </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(11)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Distribution">Distribution</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=19" title="Edit section: Distribution" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-11 collapsible-block" id="mf-section-11"> <p>OpenBSD is freely available in various ways: the source can be retrieved by anonymous <a href="/wiki/Concurrent_Versions_System" title="Concurrent Versions System">CVS</a>,<sup id="cite_ref-anoncvs_129-0" class="reference"><a href="#cite_note-anoncvs-129"><span class="cite-bracket">[</span>126<span class="cite-bracket">]</span></a></sup> and binary releases and development snapshots can be downloaded by FTP, HTTP, and rsync.<sup id="cite_ref-ftp_130-0" class="reference"><a href="#cite_note-ftp-130"><span class="cite-bracket">[</span>127<span class="cite-bracket">]</span></a></sup> Prepackaged CD-ROM sets through version 6.0 can be ordered online for a small fee, complete with an assortment of stickers and a copy of the release's theme song. These, with their artwork and other bonuses, have been one of the project's few sources of income, funding hardware, Internet service, and other expenses.<sup id="cite_ref-orders_131-0" class="reference"><a href="#cite_note-orders-131"><span class="cite-bracket">[</span>128<span class="cite-bracket">]</span></a></sup> Beginning with version 6.1, CD-ROM sets are no longer released. </p><p>OpenBSD provides a <a href="/wiki/Package_manager" title="Package manager">package management system</a> for easy installation and management of programs which are not part of the base operating system.<sup id="cite_ref-faq15_132-0" class="reference"><a href="#cite_note-faq15-132"><span class="cite-bracket">[</span>129<span class="cite-bracket">]</span></a></sup> Packages are binary files which are extracted, managed and removed using the package tools. On OpenBSD, the source of packages is the ports system, a collection of <a href="/wiki/Makefile" class="mw-redirect" title="Makefile">Makefiles</a> and other infrastructure required to create packages. In OpenBSD, the ports and base operating system are developed and released together for each version: this means that the ports or packages released with, for example, 4.6 are not suitable for use with 4.5 and vice versa.<sup id="cite_ref-faq15_132-1" class="reference"><a href="#cite_note-faq15-132"><span class="cite-bracket">[</span>129<span class="cite-bracket">]</span></a></sup> </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(12)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Songs_and_artwork">Songs and artwork</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=20" title="Edit section: Songs and artwork" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-12 collapsible-block" id="mf-section-12"> <style data-mw-deduplicate="TemplateStyles:r1237032888/mw-parser-output/.tmulti">.mw-parser-output .tmulti .multiimageinner{display:flex;flex-direction:column}.mw-parser-output .tmulti .trow{display:flex;flex-direction:row;clear:left;flex-wrap:wrap;width:100%;box-sizing:border-box}.mw-parser-output .tmulti .tsingle{margin:1px;float:left}.mw-parser-output .tmulti .theader{clear:both;font-weight:bold;text-align:center;align-self:center;background-color:transparent;width:100%}.mw-parser-output .tmulti .thumbcaption{background-color:transparent}.mw-parser-output .tmulti .text-align-left{text-align:left}.mw-parser-output .tmulti .text-align-right{text-align:right}.mw-parser-output .tmulti .text-align-center{text-align:center}@media all and (max-width:720px){.mw-parser-output .tmulti .thumbinner{width:100%!important;box-sizing:border-box;max-width:none!important;align-items:center}.mw-parser-output .tmulti .trow{justify-content:center}.mw-parser-output .tmulti .tsingle{float:none!important;max-width:100%!important;box-sizing:border-box;text-align:center}.mw-parser-output .tmulti .tsingle .thumbcaption{text-align:left}.mw-parser-output .tmulti .trow>.thumbcaption{text-align:center}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .tmulti .multiimageinner img{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .tmulti .multiimageinner img{background-color:white}}</style><div class="thumb tmulti tnone center"><div class="thumbinner multiimageinner" style="width:592px;max-width:592px"><div class="trow"><div class="tsingle" style="width:294px;max-width:294px"><div class="thumbimage" style="height:292px;overflow:hidden"><span typeof="mw:File"><a href="/wiki/File:Puffyanim.gif" class="mw-file-description"><noscript><img alt="" src="//upload.wikimedia.org/wikipedia/commons/c/c3/Puffyanim.gif" decoding="async" width="292" height="292" class="mw-file-element" data-file-width="100" data-file-height="100"></noscript><span class="lazy-image-placeholder" style="width: 292px;height: 292px;" data-src="//upload.wikimedia.org/wikipedia/commons/c/c3/Puffyanim.gif" data-alt="" data-width="292" data-height="292" data-class="mw-file-element">&nbsp;</span></a></span></div><div class="thumbcaption">3D-rendered, animated OpenBSD mascot <i>Puffy</i></div></div><div class="tsingle" style="width:294px;max-width:294px"><div class="thumbimage" style="height:292px;overflow:hidden"><span typeof="mw:File"><a href="/wiki/File:Openbsd23cover.gif" class="mw-file-description"><noscript><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Openbsd23cover.gif/292px-Openbsd23cover.gif" decoding="async" width="292" height="292" class="mw-file-element" data-file-width="579" data-file-height="579"></noscript><span class="lazy-image-placeholder" style="width: 292px;height: 292px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Openbsd23cover.gif/292px-Openbsd23cover.gif" data-alt="" data-width="292" data-height="292" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Openbsd23cover.gif/438px-Openbsd23cover.gif 1.5x, //upload.wikimedia.org/wikipedia/commons/e/e4/Openbsd23cover.gif 2x" data-class="mw-file-element">&nbsp;</span></a></span></div><div class="thumbcaption">OpenBSD 2.3 cover</div></div></div></div></div> <p>Initially, OpenBSD used a haloed version of the <a href="/wiki/BSD_daemon" class="mw-redirect" title="BSD daemon">BSD daemon</a> mascot drawn by Erick Green, who was asked by De Raadt to create the logo for the 2.3 and 2.4 versions of OpenBSD. Green planned to create a full daemon, including head and body, but only the head was completed in time for OpenBSD 2.3. The body as well as pitchfork and tail was completed for OpenBSD 2.4.<sup id="cite_ref-mckusick_openbsd_shirt_133-0" class="reference"><a href="#cite_note-mckusick_openbsd_shirt-133"><span class="cite-bracket">[</span>130<span class="cite-bracket">]</span></a></sup> </p><p>Subsequent releases used variations such as a police daemon by Ty Semaka,<sup id="cite_ref-openbsd_2.5_release_134-0" class="reference"><a href="#cite_note-openbsd_2.5_release-134"><span class="cite-bracket">[</span>131<span class="cite-bracket">]</span></a></sup> but eventually settled on a <a href="/wiki/Pufferfish" class="mw-redirect" title="Pufferfish">pufferfish</a> named Puffy.<sup id="cite_ref-2.7-release_135-0" class="reference"><a href="#cite_note-2.7-release-135"><span class="cite-bracket">[</span>132<span class="cite-bracket">]</span></a></sup> Since then, Puffy has appeared on OpenBSD promotional material and featured in release songs and artwork. </p><p>The promotional material of early OpenBSD releases did not have a cohesive theme or design, but later the CD-ROMs, release songs, posters and tee-shirts for each release have been produced with a single style and theme, sometimes contributed to by Ty Semaka of the <a href="/wiki/Plaid_Tongued_Devils" title="Plaid Tongued Devils">Plaid Tongued Devils</a>.<sup id="cite_ref-lyrics_93-1" class="reference"><a href="#cite_note-lyrics-93"><span class="cite-bracket">[</span>90<span class="cite-bracket">]</span></a></sup> These have become a part of OpenBSD advocacy, with each release expounding a moral or political point important to the project, often through parody.<sup id="cite_ref-4.0-review_136-0" class="reference"><a href="#cite_note-4.0-review-136"><span class="cite-bracket">[</span>133<span class="cite-bracket">]</span></a></sup> </p><p>Themes have included <i>Puff the Barbarian</i> in OpenBSD 3.3, which included an 80s <a href="/wiki/Rock_music" title="Rock music">rock song</a> and parody of <a href="/wiki/Conan_the_Barbarian" title="Conan the Barbarian">Conan the Barbarian</a> alluding to open documentation,<sup id="cite_ref-lyrics_93-2" class="reference"><a href="#cite_note-lyrics-93"><span class="cite-bracket">[</span>90<span class="cite-bracket">]</span></a></sup> <a href="/wiki/The_Wizard_of_OS_(song)" class="mw-redirect" title="The Wizard of OS (song)"><i>The Wizard of OS</i></a> in OpenBSD 3.7, related to the project's work on wireless drivers, and <i>Hackers of the Lost RAID</i>, a parody of <a href="/wiki/Indiana_Jones" title="Indiana Jones">Indiana Jones</a> referencing the new RAID tools in OpenBSD 3.8. </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(13)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Releases">Releases</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=21" title="Edit section: Releases" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-13 collapsible-block" id="mf-section-13"> <p>The following table summarizes the version history of the OpenBSD <a href="/wiki/Operating_system" title="Operating system">operating system</a>. </p> <table class="templateVersion t wikitable" style="text-align: center;"> <tbody><tr> <th class="hintergrundfarbe5 t" style="padding: 0.5ex 0.75em; text-align: left;">Legend: </th> <td style="color:black; background-color: #FDB3AB; padding: 0.5ex 0.75em;" title="Old version, no longer maintained">Old version, not maintained </td> <td style="color:black; background-color: #FEF8C6; padding: 0.5ex 0.75em;" title="Old version, yet still maintained">Old version, still maintained </td> <td style="color:black; background-color: #D4F4B4; padding: 0.5ex 0.75em;" title="Current stable version"><b>Current stable version</b> </td> <td style="color:black; background-color: #FED1A0; padding: 0.5ex 0.75em; display: none;" title="Latest preview version of a future release">Latest preview version </td> <td style="color:black; background-color: #C1E6F5; padding: 0.5ex 0.75em;" title="Future release">Future release </td></tr></tbody></table> <table class="wikitable"> <tbody><tr> <th>Version </th> <th>Release date </th> <th>Supported until </th> <th>Significant changes </th></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="1.1"><span style="display: none;">Old version, no longer maintained:</span> 1.1 </td> <td>18 October 1995 </td> <td> </td> <td> <ul><li>OpenBSD <a href="/wiki/Concurrent_Versions_System" title="Concurrent Versions System">CVS</a> repository created by <a href="/wiki/Theo_de_Raadt" title="Theo de Raadt">Theo de Raadt</a>.<sup id="cite_ref-137" class="reference"><a href="#cite_note-137"><span class="cite-bracket">[</span>134<span class="cite-bracket">]</span></a></sup></li> <li>While the version number used at this stage was 1.1,<sup id="cite_ref-138" class="reference"><a href="#cite_note-138"><span class="cite-bracket">[</span>note 4<span class="cite-bracket">]</span></a></sup> OpenBSD 1.1 was not an official OpenBSD release in the sense which this term subsequently came to be used.</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="1.2"><span style="display: none;">Old version, no longer maintained:</span> 1.2 </td> <td>1 July 1996 </td> <td> </td> <td> <ul><li>Creation of the <code>intro(9)</code> man page, for documenting kernel internals.</li> <li>Integration of the <code>update(8)</code> command into the kernel.</li> <li>As before, while this version number was used in the early development of the OS, OpenBSD 1.2 was not an official release in the subsequently applicable sense.</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="2.0"><span style="display: none;">Old version, no longer maintained:</span> 2.0 </td> <td>1 October 1996 </td> <td> </td> <td> <ul><li>The first official release of OpenBSD,<sup id="cite_ref-139" class="reference"><a href="#cite_note-139"><span class="cite-bracket">[</span>135<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-140" class="reference"><a href="#cite_note-140"><span class="cite-bracket">[</span>136<span class="cite-bracket">]</span></a></sup> and also the point at which <a href="/wiki/XFree86" title="XFree86">XFree86</a> first recognized OpenBSD as separate from <a href="/wiki/NetBSD" title="NetBSD">NetBSD</a>.</li> <li>Initial integration of the <a href="/wiki/FreeBSD_ports" class="mw-redirect" title="FreeBSD ports">FreeBSD ports</a> system.</li> <li>Replacement of <a href="/wiki/Gawk_(GNU_package)" class="mw-redirect" title="Gawk (GNU package)">gawk</a> with the <a href="/wiki/AT%26T" title="AT&amp;T">AT&amp;T</a> <a href="/wiki/Awk" class="mw-redirect" title="Awk">awk</a>.</li> <li>Integration of <a href="/wiki/Zlib" title="Zlib">zlib</a>.</li> <li>Added <a href="/wiki/Sudo" title="Sudo">sudo</a>.</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="2.1"><span style="display: none;">Old version, no longer maintained:</span> 2.1 </td> <td>1 June 1997 </td> <td> </td> <td>Replacement of the older sh with <a href="/wiki/Pdksh" class="mw-redirect" title="Pdksh">pdksh</a>.<sup id="cite_ref-141" class="reference"><a href="#cite_note-141"><span class="cite-bracket">[</span>137<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="2.2"><span style="display: none;">Old version, no longer maintained:</span> 2.2 </td> <td>1 December 1997 </td> <td> </td> <td>Addition of the <code>afterboot(8)</code> man page.<sup id="cite_ref-142" class="reference"><a href="#cite_note-142"><span class="cite-bracket">[</span>138<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="2.3"><span style="display: none;">Old version, no longer maintained:</span> 2.3 </td> <td>19 May 1998 </td> <td> </td> <td>Introduced the <i>haloed daemon</i>, or <a href="/wiki/BSD_Daemon" title="BSD Daemon">aureola beastie</a>, in head-only form created by Erick Green.<sup id="cite_ref-143" class="reference"><a href="#cite_note-143"><span class="cite-bracket">[</span>139<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="2.4"><span style="display: none;">Old version, no longer maintained:</span> 2.4 </td> <td>1 December 1998 </td> <td> </td> <td>Featured the complete <i>haloed daemon</i>, with <a href="/wiki/Trident" title="Trident">trident</a> and a finished body.<sup id="cite_ref-144" class="reference"><a href="#cite_note-144"><span class="cite-bracket">[</span>140<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="2.5"><span style="display: none;">Old version, no longer maintained:</span> 2.5 </td> <td>19 May 1999 </td> <td> </td> <td>Introduced the Cop daemon image done by Ty Semaka.<sup id="cite_ref-145" class="reference"><a href="#cite_note-145"><span class="cite-bracket">[</span>141<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="2.6"><span style="display: none;">Old version, no longer maintained:</span> 2.6 </td> <td>1 December 1999 </td> <td> </td> <td>Based on the original <a href="/wiki/Secure_Shell" title="Secure Shell">SSH</a> suite and developed further by the OpenBSD team, 2.6 saw the first release of <a href="/wiki/OpenSSH" title="OpenSSH">OpenSSH</a>, which is now available standard on most Unix-like operating systems and is the most widely used SSH suite.<sup id="cite_ref-146" class="reference"><a href="#cite_note-146"><span class="cite-bracket">[</span>142<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="2.7"><span style="display: none;">Old version, no longer maintained:</span> 2.7 </td> <td>15 June 2000 </td> <td> </td> <td>Support for SSH2 added to OpenSSH.<sup id="cite_ref-147" class="reference"><a href="#cite_note-147"><span class="cite-bracket">[</span>143<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="2.8"><span style="display: none;">Old version, no longer maintained:</span> 2.8 </td> <td>1 December 2000 </td> <td> </td> <td><code>isakmpd(8)</code><sup id="cite_ref-148" class="reference"><a href="#cite_note-148"><span class="cite-bracket">[</span>144<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="2.9"><span style="display: none;">Old version, no longer maintained:</span> 2.9 </td> <td>1 June 2001 </td> <td> </td> <td> <p>Filesystem performance increases from softupdates and dirpref code.<sup id="cite_ref-149" class="reference"><a href="#cite_note-149"><span class="cite-bracket">[</span>145<span class="cite-bracket">]</span></a></sup> </p> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="3.0"><span style="display: none;">Old version, no longer maintained:</span> 3.0 </td> <td>1 December 2001 </td> <td> </td> <td> <p><i>E-Railed (OpenBSD Mix)</i>,<sup id="cite_ref-150" class="reference"><a href="#cite_note-150"><span class="cite-bracket">[</span>146<span class="cite-bracket">]</span></a></sup> a <a href="/wiki/Techno_music" class="mw-redirect" title="Techno music">techno</a> track performed by the release mascot <i>Puff Daddy</i>, the famed rapper and political icon. </p> <ul><li>After license restrictions were imposed on <a href="/wiki/IPFilter" title="IPFilter">IPFilter</a>, the <a href="/wiki/PF_(firewall)" title="PF (firewall)">pf</a> packet filter was developed. pf is now available in <a href="/wiki/DragonFly_BSD" title="DragonFly BSD">DragonFly BSD</a>, <a href="/wiki/NetBSD" title="NetBSD">NetBSD</a> and <a href="/wiki/FreeBSD" title="FreeBSD">FreeBSD</a>.</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="3.1"><span style="display: none;">Old version, no longer maintained:</span> 3.1 </td> <td>19 May 2002 </td> <td> </td> <td><i>Systemagic</i>,<sup id="cite_ref-151" class="reference"><a href="#cite_note-151"><span class="cite-bracket">[</span>147<span class="cite-bracket">]</span></a></sup> where <i>Puffy, the Kitten Slayer</i>, battles evil <a href="/wiki/Script_kitties" class="mw-redirect" title="Script kitties">script kitties</a>. Inspired by the works of <a href="/wiki/Rammstein" title="Rammstein">Rammstein</a> and a parody of <a href="/wiki/Buffy_the_Vampire_Slayer_(TV_series)" class="mw-redirect" title="Buffy the Vampire Slayer (TV series)">Buffy the Vampire Slayer</a>. <ul><li>First official remote security hole - OpenSSH integer overflow<sup id="cite_ref-152" class="reference"><a href="#cite_note-152"><span class="cite-bracket">[</span>148<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="3.2"><span style="display: none;">Old version, no longer maintained:</span> 3.2 </td> <td>1 November 2002 </td> <td> </td> <td><i>Goldflipper</i>,<sup id="cite_ref-153" class="reference"><a href="#cite_note-153"><span class="cite-bracket">[</span>149<span class="cite-bracket">]</span></a></sup> a tale in which <i>James Pond, agent 077</i>, super spy and suave lady's man, deals with the dangers of a hostile internet. Styled after the orchestral introductory ballads of <a href="/wiki/James_Bond" title="James Bond">James Bond</a> films. </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="3.3"><span style="display: none;">Old version, no longer maintained:</span> 3.3 </td> <td>1 May 2003 </td> <td> </td> <td> <p><i>Puff the Barbarian</i>,<sup id="cite_ref-154" class="reference"><a href="#cite_note-154"><span class="cite-bracket">[</span>150<span class="cite-bracket">]</span></a></sup> born in a tiny bowl; Puff was a slave, now he hacks through the C, searching for the <a href="/wiki/AMD64" class="mw-redirect" title="AMD64">Hammer</a>. It is an 80s rock-style song and parody of <a href="/wiki/Conan_the_Barbarian" title="Conan the Barbarian">Conan the Barbarian</a> dealing with open documentation. </p> <ul><li>In 2003, code from <a href="/wiki/ALTQ" title="ALTQ">ALTQ</a>, which had a license disallowing the sale of derivatives, was <a href="/wiki/Software_relicensing" title="Software relicensing">relicensed</a>, integrated into pf and made available in OpenBSD 3.3.</li> <li>First release adding the <a href="/wiki/W%5EX" title="W^X">W^X</a> feature, a fine-grained memory permissions layout, ensuring that memory which can be written to by application programs can not be executable at the same time and vice versa.</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="3.4"><span style="display: none;">Old version, no longer maintained:</span> 3.4 </td> <td>1 November 2003 </td> <td> </td> <td> <p><i>The Legend of Puffy Hood</i> where <i>Sir Puffy of Ramsay</i>,<sup id="cite_ref-155" class="reference"><a href="#cite_note-155"><span class="cite-bracket">[</span>151<span class="cite-bracket">]</span></a></sup> a freedom fighter who, with Little Bob of Beckley, took from the rich and gave to all. Tells of the <a href="/wiki/POSSE_project" title="POSSE project">POSSE project</a>'s cancellation. An unusual blend of both <a href="/wiki/Hip_hop_music" title="Hip hop music">hip-hop</a> and medieval-style music, a parody of the tale of <a href="/wiki/Robin_Hood" title="Robin Hood">Robin Hood</a> intended to express OpenBSD's attitude to free speech. </p> <ul><li>i386 platform switched executable format from <a href="/wiki/A.out" title="A.out">a.out</a> to <a href="/wiki/Executable_and_Linkable_Format" title="Executable and Linkable Format">Executable and Linkable Format</a></li> <li>The GPL licensed <a href="/wiki/Gzip" title="Gzip">gzip</a> was replaced by retooling the existing <a href="/wiki/Compress" class="mw-redirect" title="Compress">compress</a> tool to include its functionality.</li> <li>The GPL licensed <a href="/wiki/Grep" title="Grep">grep</a> was replaced with <a href="/w/index.php?title=JamesHoward:FreeGrep&amp;action=edit&amp;redlink=1" class="new" title="JamesHoward:FreeGrep (page does not exist)">FreeGrep</a>, an updated BSD licensed grep. This new grep is now also available in NetBSD.</li> <li>A public domain <a href="/wiki/Diff" title="Diff">diff</a> was updated and used to replace the GPL licensed diff previously included.</li> <li>Code from the <a href="/wiki/GNU_Lesser_General_Public_License" title="GNU Lesser General Public License">LGPL</a> licensed <sup id="cite_ref-156" class="reference"><a href="#cite_note-156"><span class="cite-bracket">[</span>152<span class="cite-bracket">]</span></a></sup> was relicensed to allow pf to feature passive operating system detection.</li> <li><a href="/wiki/Address_space_layout_randomization" title="Address space layout randomization">Address space layout randomization</a> (ASLR) by default<sup id="cite_ref-OpenBSD_Innovations-ASLR-PIE_157-0" class="reference"><a href="#cite_note-OpenBSD_Innovations-ASLR-PIE-157"><span class="cite-bracket">[</span>153<span class="cite-bracket">]</span></a></sup></li> <li>Basic sysctl <a href="/wiki/Hw.sensors" title="Hw.sensors">hw.sensors</a> API introduced for <a href="/wiki/Hardware_monitoring" class="mw-redirect" title="Hardware monitoring">hardware monitoring</a>.<sup id="cite_ref-sensors-abc2009_158-0" class="reference"><a href="#cite_note-sensors-abc2009-158"><span class="cite-bracket">[</span>154<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="3.5"><span style="display: none;">Old version, no longer maintained:</span> 3.5 </td> <td>1 May 2004 </td> <td> </td> <td> <p><i>CARP License</i> and <i>Redundancy must be free</i>,<sup id="cite_ref-159" class="reference"><a href="#cite_note-159"><span class="cite-bracket">[</span>155<span class="cite-bracket">]</span></a></sup> where a fish seeking to license his free redundancy protocol, CARP, finds trouble with the red tape. A parody of the <a href="/wiki/Fish_Licence" title="Fish Licence">Fish Licence</a> skit and <a href="/wiki/Eric_the_Half-a-Bee_Song" class="mw-redirect" title="Eric the Half-a-Bee Song">Eric the Half-a-Bee Song</a> by <a href="/wiki/Monty_Python" title="Monty Python">Monty Python</a>, with an anti-software patents message. </p> <ul><li><a href="/wiki/Common_Address_Redundancy_Protocol" title="Common Address Redundancy Protocol">CARP</a>, an open alternative to the <a href="/wiki/Hot_Standby_Router_Protocol" title="Hot Standby Router Protocol">HSRP</a> and <a href="/wiki/Virtual_Router_Redundancy_Protocol" title="Virtual Router Redundancy Protocol">VRRP</a> redundancy systems available from commercial vendors.<sup id="cite_ref-onlamp-35-1_160-0" class="reference"><a href="#cite_note-onlamp-35-1-160"><span class="cite-bracket">[</span>156<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-onlamp-35-2_161-0" class="reference"><a href="#cite_note-onlamp-35-2-161"><span class="cite-bracket">[</span>157<span class="cite-bracket">]</span></a></sup></li> <li>GPL licensed parts of the GNU tool-set, <a href="/wiki/Bc_programming_language" class="mw-redirect" title="Bc programming language">bc</a>,<sup id="cite_ref-162" class="reference"><a href="#cite_note-162"><span class="cite-bracket">[</span>158<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Dc_(Unix)" class="mw-redirect" title="Dc (Unix)">dc</a>,<sup id="cite_ref-163" class="reference"><a href="#cite_note-163"><span class="cite-bracket">[</span>159<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Nm_(Unix)" title="Nm (Unix)">nm</a><sup id="cite_ref-164" class="reference"><a href="#cite_note-164"><span class="cite-bracket">[</span>160<span class="cite-bracket">]</span></a></sup> and size,<sup id="cite_ref-165" class="reference"><a href="#cite_note-165"><span class="cite-bracket">[</span>161<span class="cite-bracket">]</span></a></sup> were all replaced with BSD licensed equivalents.</li> <li><a href="/wiki/AMD64" class="mw-redirect" title="AMD64">AMD64</a> platform becomes stable enough for release and is included for the first time as part of a release.</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="3.6"><span style="display: none;">Old version, no longer maintained:</span> 3.6 </td> <td>1 November 2004 </td> <td> </td> <td> <p><i>Pond-erosa Puff (live)</i> was the tale of <i>Pond-erosa Puff</i>,<sup id="cite_ref-166" class="reference"><a href="#cite_note-166"><span class="cite-bracket">[</span>162<span class="cite-bracket">]</span></a></sup> a no-guff freedom fighter from the wild west, set to hang a lickin' on no-good bureaucratic nerds who encumber software with needless words and restrictions. The song was styled after the works of <a href="/wiki/Johnny_Cash" title="Johnny Cash">Johnny Cash</a>, a parody of the <a href="/wiki/Spaghetti_Western" title="Spaghetti Western">Spaghetti Western</a> and <a href="/wiki/Clint_Eastwood" title="Clint Eastwood">Clint Eastwood</a> and inspired by liberal license enforcement. </p> <ul><li><a href="/wiki/OpenNTPD" title="OpenNTPD">OpenNTPD</a>, a compatible alternative to the reference NTP daemon, was developed within the OpenBSD project. The goal of OpenNTPD was not solely a compatible license. It also aims to be a simple, secure NTP implementation providing acceptable accuracy for most cases, without requiring detailed configuration.<sup id="cite_ref-167" class="reference"><a href="#cite_note-167"><span class="cite-bracket">[</span>163<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-onlamp-36_168-0" class="reference"><a href="#cite_note-onlamp-36-168"><span class="cite-bracket">[</span>164<span class="cite-bracket">]</span></a></sup></li> <li>Because of its questionable security record and doubts of developers for better future development, OpenBSD removed <a href="/wiki/Wireshark" title="Wireshark">Ethereal</a> from its ports tree prior to its 3.6 release.</li> <li>Added support for <a href="/wiki/I2C" class="mw-redirect" title="I2C">I<sup>2</sup>C</a> master/slave devices<sup id="cite_ref-onlamp-36_168-1" class="reference"><a href="#cite_note-onlamp-36-168"><span class="cite-bracket">[</span>164<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="3.7"><span style="display: none;">Old version, no longer maintained:</span> 3.7 </td> <td>19 May 2005 </td> <td> </td> <td><i><a href="/wiki/Wizard_of_OS_(song)" class="mw-redirect" title="Wizard of OS (song)">The Wizard of OS</a></i>,<sup id="cite_ref-169" class="reference"><a href="#cite_note-169"><span class="cite-bracket">[</span>165<span class="cite-bracket">]</span></a></sup> where <i>Puffathy</i>, a little <a href="/wiki/Alberta" title="Alberta">Alberta</a> girl, must work with <a href="/wiki/Taiwan" title="Taiwan">Taiwan</a> to save the day by getting unencumbered <a href="/wiki/Wireless" title="Wireless">wireless</a>. This release was styled after the works of <a href="/wiki/Pink_Floyd" title="Pink Floyd">Pink Floyd</a> and a parody of The <a href="/wiki/The_Wizard_of_Oz_(1939_film)" class="mw-redirect" title="The Wizard of Oz (1939 film)">Wizard of Oz</a>; this dealt with wireless hacking.<sup id="cite_ref-onlamp-37_170-0" class="reference"><a href="#cite_note-onlamp-37-170"><span class="cite-bracket">[</span>166<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="3.8"><span style="display: none;">Old version, no longer maintained:</span> 3.8 </td> <td>1 November 2005 </td> <td>1 November 2006 </td> <td><i>Hackers of the Lost RAID</i>,<sup id="cite_ref-171" class="reference"><a href="#cite_note-171"><span class="cite-bracket">[</span>167<span class="cite-bracket">]</span></a></sup> which detailed the exploits of <i>Puffiana Jones</i>, famed hackologist and adventurer, seeking out the Lost RAID, Styled after the radio <a href="/wiki/Serial_(radio_and_television)" title="Serial (radio and television)">serials</a> of the 1930s and 40s, this was a <a href="/wiki/Parody" title="Parody">parody</a> of <a href="/wiki/Indiana_Jones" title="Indiana Jones">Indiana Jones</a> and was linked to the new RAID tools featured as part of this release. This is the first version released without the <a href="/wiki/Telnet" title="Telnet">telnet</a> daemon which was completely removed from the source tree by Theo de Raadt in May 2005.<sup id="cite_ref-172" class="reference"><a href="#cite_note-172"><span class="cite-bracket">[</span>168<span class="cite-bracket">]</span></a></sup> <ul><li><a href="/wiki/Bioctl" title="Bioctl">bioctl</a> introduced as a new universal <a href="/wiki/RAID" title="RAID">RAID</a> management tool (similar to <a href="/wiki/Ifconfig" title="Ifconfig">ifconfig</a>)<sup id="cite_ref-onlamp-38_173-0" class="reference"><a href="#cite_note-onlamp-38-173"><span class="cite-bracket">[</span>169<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="3.9"><span style="display: none;">Old version, no longer maintained:</span> 3.9 </td> <td>1 May 2006 </td> <td>1 May 2007 </td> <td> <p><i>Attack of the Binary BLOB</i>,<sup id="cite_ref-174" class="reference"><a href="#cite_note-174"><span class="cite-bracket">[</span>170<span class="cite-bracket">]</span></a></sup> which chronicles the developer's fight against <a href="/wiki/Binary_blobs" class="mw-redirect" title="Binary blobs">binary blobs</a> and <a href="/wiki/Vendor_lock-in" title="Vendor lock-in">vendor lock-in</a>,<sup id="cite_ref-onlamp-39_175-0" class="reference"><a href="#cite_note-onlamp-39-175"><span class="cite-bracket">[</span>171<span class="cite-bracket">]</span></a></sup> a parody of the 1958 film <a href="/wiki/The_Blob" title="The Blob">The Blob</a> and the pop-rock music of the era. </p> <ul><li>Enhanced <a href="/wiki/OpenBGPD" title="OpenBGPD">OpenBGPD</a> feature-set.</li> <li>Improved <a href="/wiki/Hw.sensors" title="Hw.sensors">hardware sensors</a> support, including a new <a href="/wiki/Intelligent_Platform_Management_Interface" title="Intelligent Platform Management Interface">IPMI</a> subsystem and a new <a href="/wiki/I2C" class="mw-redirect" title="I2C">I<sup>2</sup>C</a> scan subsystem; number of drivers using the sensors framework increased to a total of 33 drivers (compared to 9 in the prior 3.8 release 6 months ago).<sup id="cite_ref-sensors-abc2009_158-1" class="reference"><a href="#cite_note-sensors-abc2009-158"><span class="cite-bracket">[</span>154<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-onlamp-39_175-1" class="reference"><a href="#cite_note-onlamp-39-175"><span class="cite-bracket">[</span>171<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="4.0"><span style="display: none;">Old version, no longer maintained:</span> 4.0 </td> <td>1 November 2006 </td> <td>1 November 2007 </td> <td><i>Humppa Negala</i>,<sup id="cite_ref-176" class="reference"><a href="#cite_note-176"><span class="cite-bracket">[</span>172<span class="cite-bracket">]</span></a></sup> a <a href="/wiki/Hava_Nagilah" class="mw-redirect" title="Hava Nagilah">Hava Nagilah</a> parody with a portion of <a href="/wiki/Entrance_of_the_Gladiators" title="Entrance of the Gladiators">Entrance of the Gladiators</a> and <a href="/wiki/Humppa" title="Humppa">Humppa</a> music fused together, with no story behind it, simply a <a href="/wiki/Homage_(arts)" title="Homage (arts)">homage</a> to one of the OpenBSD developers' favorite genres of music.<sup id="cite_ref-onlamp-40_177-0" class="reference"><a href="#cite_note-onlamp-40-177"><span class="cite-bracket">[</span>173<span class="cite-bracket">]</span></a></sup> <ul><li>Second official remote security hole - buffer overflow by malformed <a href="/wiki/ICMPv6" title="ICMPv6">ICMPv6</a> packets <sup id="cite_ref-178" class="reference"><a href="#cite_note-178"><span class="cite-bracket">[</span>174<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="4.1"><span style="display: none;">Old version, no longer maintained:</span> 4.1 </td> <td>1 May 2007 </td> <td>1 May 2008 </td> <td><i>Puffy Baba and the 40 Vendors</i>,<sup id="cite_ref-179" class="reference"><a href="#cite_note-179"><span class="cite-bracket">[</span>175<span class="cite-bracket">]</span></a></sup> a parody of the <a href="/wiki/Arabic" title="Arabic">Arabic</a> <a href="/wiki/Fable" title="Fable">fable</a> <a href="/wiki/Ali_Baba" class="mw-redirect" title="Ali Baba">Ali Baba</a> and the Forty Thieves, part of the book of <a href="/wiki/One_Thousand_and_One_Nights" title="One Thousand and One Nights">One Thousand and One Nights</a>, in which <a href="/wiki/Linux" title="Linux">Linux</a> developers are mocked over their allowance of <a href="/wiki/Non-disclosure_agreement" title="Non-disclosure agreement">non-disclosure agreements</a> when developing software while at the same time implying hardware vendors are <a href="/wiki/Criminals" class="mw-redirect" title="Criminals">criminals</a> for not releasing documentation required to make reliable device drivers.<sup id="cite_ref-onlamp-41_180-0" class="reference"><a href="#cite_note-onlamp-41-180"><span class="cite-bracket">[</span>176<span class="cite-bracket">]</span></a></sup> <ul><li>Redesigned sysctl <a href="/wiki/Hw.sensors" title="Hw.sensors">hw.sensors</a> into a two-level sensor API;<sup id="cite_ref-sensors-undeadly06_181-0" class="reference"><a href="#cite_note-sensors-undeadly06-181"><span class="cite-bracket">[</span>177<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-sensors-ieee07_182-0" class="reference"><a href="#cite_note-sensors-ieee07-182"><span class="cite-bracket">[</span>178<span class="cite-bracket">]</span></a></sup> a total of 46 device drivers exporting sensors through the framework with this release.<sup id="cite_ref-sensors-abc2009_158-2" class="reference"><a href="#cite_note-sensors-abc2009-158"><span class="cite-bracket">[</span>154<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="4.2"><span style="display: none;">Old version, no longer maintained:</span> 4.2 </td> <td>1 November 2007 </td> <td>1 November 2008 </td> <td><i>100001 1010101</i>,<sup id="cite_ref-183" class="reference"><a href="#cite_note-183"><span class="cite-bracket">[</span>179<span class="cite-bracket">]</span></a></sup> the Linux kernel developers gets a knock for violating the ISC-style license of OpenBSD's open hardware abstraction layer for Atheros wireless cards. <ul><li>Usability of sensorsd improved, allowing zero-configuration monitoring of smart sensors from the <a href="/wiki/Hw.sensors" title="Hw.sensors">hw.sensors</a> framework (e.g., <a href="/wiki/Intelligent_Platform_Management_Interface" title="Intelligent Platform Management Interface">IPMI</a> or <a href="/wiki/Bio(4)" class="mw-redirect" title="Bio(4)">bio(4)</a>-based), and easier configuration for monitoring of non-smart sensors.<sup id="cite_ref-onlamp-42_184-0" class="reference"><a href="#cite_note-onlamp-42-184"><span class="cite-bracket">[</span>180<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="4.3"><span style="display: none;">Old version, no longer maintained:</span> 4.3 </td> <td>1 May 2008 </td> <td>1 May 2009 </td> <td><i>Home to Hypocrisy</i><sup id="cite_ref-185" class="reference"><a href="#cite_note-185"><span class="cite-bracket">[</span>181<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-onlamp-43_186-0" class="reference"><a href="#cite_note-onlamp-43-186"><span class="cite-bracket">[</span>182<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="4.4"><span style="display: none;">Old version, no longer maintained:</span> 4.4 </td> <td>1 November 2008 </td> <td>18 October 2009 </td> <td> <p><i>Trial of the BSD Knights</i>,<sup id="cite_ref-187" class="reference"><a href="#cite_note-187"><span class="cite-bracket">[</span>183<span class="cite-bracket">]</span></a></sup> summarizes the history of <a href="/wiki/Berkeley_Software_Distribution" title="Berkeley Software Distribution">BSD</a> including the <a href="/wiki/USL_v._BSDi" class="mw-redirect" title="USL v. BSDi">USL v. BSDi</a> lawsuit. The song was styled after the works of <a href="/wiki/Star_Wars" title="Star Wars">Star Wars</a>. </p> <ul><li>sparc64 port now supports many recent processors: <a href="/wiki/Sun_Microsystems" title="Sun Microsystems">Sun</a> <a href="/wiki/UltraSPARC_IV" title="UltraSPARC IV">UltraSPARC IV</a>, <a href="/wiki/UltraSPARC_T1" title="UltraSPARC T1">T1</a>, and <a href="/wiki/UltraSPARC_T2" title="UltraSPARC T2">T2</a>; <a href="/wiki/Fujitsu" title="Fujitsu">Fujitsu</a> <a href="/wiki/SPARC64_V" title="SPARC64 V">SPARC64 V</a>, <a href="/wiki/SPARC64_VI" class="mw-redirect" title="SPARC64 VI">VI</a>, and <a href="/wiki/SPARC64_VII" class="mw-redirect" title="SPARC64 VII">VII</a>.</li> <li>New System-on-a-Chip PowerPC port for Freescale devices</li> <li><a href="/wiki/C_dynamic_memory_allocation#OpenBSD.27s_malloc" title="C dynamic memory allocation">malloc(3)</a> <a href="/wiki/Address_space_layout_randomization#OpenBSD" title="Address space layout randomization">randomization</a>, guard pages, and randomized (delayed) free<sup id="cite_ref-OpenBSD-PIE_188-0" class="reference"><a href="#cite_note-OpenBSD-PIE-188"><span class="cite-bracket">[</span>184<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-OpenBSD_Innovations-ASLR-PIE_157-1" class="reference"><a href="#cite_note-OpenBSD_Innovations-ASLR-PIE-157"><span class="cite-bracket">[</span>153<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-onlamp-44_189-0" class="reference"><a href="#cite_note-onlamp-44-189"><span class="cite-bracket">[</span>185<span class="cite-bracket">]</span></a></sup></li> <li>The <a href="/wiki/Hw.sensors" title="Hw.sensors">hw.sensors</a> framework is used by 68 device drivers, after 7 new drivers were added as of this release.<sup id="cite_ref-onlamp-44_189-1" class="reference"><a href="#cite_note-onlamp-44-189"><span class="cite-bracket">[</span>185<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="4.5"><span style="display: none;">Old version, no longer maintained:</span> 4.5 </td> <td>1 May 2009 </td> <td>19 May 2010 </td> <td><i>Games</i>. It was styled after the works of <a href="/wiki/Tron" title="Tron">Tron</a>.<sup id="cite_ref-190" class="reference"><a href="#cite_note-190"><span class="cite-bracket">[</span>186<span class="cite-bracket">]</span></a></sup> <ul><li>The <a href="/wiki/Hw.sensors" title="Hw.sensors">hw.sensors</a> framework is used by 72 device drivers.<sup id="cite_ref-onlamp-45_191-0" class="reference"><a href="#cite_note-onlamp-45-191"><span class="cite-bracket">[</span>187<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-sensors-mmath_192-0" class="reference"><a href="#cite_note-sensors-mmath-192"><span class="cite-bracket">[</span>188<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="4.6"><span style="display: none;">Old version, no longer maintained:</span> 4.6 </td> <td>18 October 2009 </td> <td>1 November 2010 </td> <td><i>Planet of the Users</i>.<sup id="cite_ref-193" class="reference"><a href="#cite_note-193"><span class="cite-bracket">[</span>189<span class="cite-bracket">]</span></a></sup> In the style of <i><a href="/wiki/Planet_of_the_Apes" title="Planet of the Apes">Planet of the Apes</a></i>, Puffy travels in time to find a dumbed-down <a href="/wiki/Dystopia" title="Dystopia">dystopia</a>, where "<a href="/wiki/Bill_Gates" title="Bill Gates">one very rich man</a> runs the earth with <a href="/wiki/Microsoft" title="Microsoft">one multinational</a>". Open-source software has since been replaced by one-button computers, one-channel televisions, and closed-source software which, after you purchase it, becomes obsolete before you have a chance to use it. People subsist on <a href="/wiki/Soylent_green" class="mw-redirect" title="Soylent green">soylent green</a>. The theme song is performed in the <a href="/wiki/Reggae_rock" title="Reggae rock">reggae rock</a> style of <a href="/wiki/The_Police" title="The Police">The Police</a>. <ul><li><code>smtpd(8)</code>, privilege-separated SMTP server</li> <li><code>tmux(1)</code> terminal multiplexer</li> <li>The <a href="/wiki/Hw.sensors" title="Hw.sensors">hw.sensors</a> framework is used by 75 device drivers.<sup id="cite_ref-sensors-mmath_192-1" class="reference"><a href="#cite_note-sensors-mmath-192"><span class="cite-bracket">[</span>188<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="4.7"><span style="display: none;">Old version, no longer maintained:</span> 4.7 </td> <td>19 May 2010 </td> <td>1 May 2011 </td> <td><i>I'm Still Here</i> <sup id="cite_ref-194" class="reference"><a href="#cite_note-194"><span class="cite-bracket">[</span>190<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="4.8"><span style="display: none;">Old version, no longer maintained:</span> 4.8 </td> <td>1 November 2010 </td> <td>1 November 2011 </td> <td><i>El Puffiachi</i>.<sup id="cite_ref-195" class="reference"><a href="#cite_note-195"><span class="cite-bracket">[</span>191<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-196" class="reference"><a href="#cite_note-196"><span class="cite-bracket">[</span>192<span class="cite-bracket">]</span></a></sup> <ul><li><code>iked(8)</code> <a href="/wiki/IKEv2" class="mw-redirect" title="IKEv2">IKEv2</a> daemon</li> <li><code>ldapd(8)</code> LDAP daemon</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="4.9"><span style="display: none;">Old version, no longer maintained:</span> 4.9 </td> <td>1 May 2011 </td> <td>1 May 2012 </td> <td><i>The Answer</i>.<sup id="cite_ref-197" class="reference"><a href="#cite_note-197"><span class="cite-bracket">[</span>193<span class="cite-bracket">]</span></a></sup> <ul><li><code>rc.d(8)</code> daemon control</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="5.0"><span style="display: none;">Old version, no longer maintained:</span> 5.0 </td> <td>1 November 2011 </td> <td>1 November 2012 </td> <td><i>What Me Worry?</i>.<sup id="cite_ref-198" class="reference"><a href="#cite_note-198"><span class="cite-bracket">[</span>194<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="5.1"><span style="display: none;">Old version, no longer maintained:</span> 5.1 </td> <td>1 May 2012 </td> <td>1 May 2014 </td> <td><i>Bug Busters</i>. The song was styled after the works of <a href="/wiki/Ghostbusters" title="Ghostbusters">Ghostbusters</a>.<sup id="cite_ref-199" class="reference"><a href="#cite_note-199"><span class="cite-bracket">[</span>195<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="5.2"><span style="display: none;">Old version, no longer maintained:</span> 5.2 </td> <td>1 November 2012 </td> <td>1 November 2013 </td> <td><i>Aquarela do Linux</i>.<sup id="cite_ref-200" class="reference"><a href="#cite_note-200"><span class="cite-bracket">[</span>196<span class="cite-bracket">]</span></a></sup> <ul><li><a href="/wiki/Nginx" title="Nginx"><code>nginx(8)</code></a> HTTP server</li> <li>SSLv2 disabled</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="5.3"><span style="display: none;">Old version, no longer maintained:</span> 5.3 </td> <td>1 May 2013 </td> <td>1 May 2014 </td> <td><i>Blade Swimmer</i>. The song was styled after the works of <a href="/wiki/Roy_Lee" title="Roy Lee">Roy Lee</a>, a parody of <a href="/wiki/Blade_Runner" title="Blade Runner">Blade Runner</a>.<sup id="cite_ref-201" class="reference"><a href="#cite_note-201"><span class="cite-bracket">[</span>197<span class="cite-bracket">]</span></a></sup> <ul><li><a href="/wiki/Position-independent_code#PIE" title="Position-independent code">Position-independent executables</a> (PIE) by default for seven hardware platforms<sup id="cite_ref-OpenBSD_Innovations-ASLR-PIE_157-2" class="reference"><a href="#cite_note-OpenBSD_Innovations-ASLR-PIE-157"><span class="cite-bracket">[</span>153<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="5.4"><span style="display: none;">Old version, no longer maintained:</span> 5.4 </td> <td>1 November 2013 </td> <td>1 November 2014 </td> <td><i>Our favorite hacks</i>, a parody of <a href="/wiki/My_Favorite_Things_(song)" title="My Favorite Things (song)">My Favorite Things</a>.<sup id="cite_ref-202" class="reference"><a href="#cite_note-202"><span class="cite-bracket">[</span>198<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="5.5"><span style="display: none;">Old version, no longer maintained:</span> 5.5 </td> <td>1 May 2014 </td> <td>1 May 2015 </td> <td><i>Wrap in Time</i>.<sup id="cite_ref-203" class="reference"><a href="#cite_note-203"><span class="cite-bracket">[</span>199<span class="cite-bracket">]</span></a></sup> <ul><li><code>signify(1)</code> cryptographic signatures of release and packages</li> <li>64bit <code>time_t</code> on all platforms (<a href="/wiki/Year_2038_problem" title="Year 2038 problem">Y2K38</a> ready)</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="5.6"><span style="display: none;">Old version, no longer maintained:</span> 5.6 </td> <td>1 November 2014 </td> <td>18 October 2015 </td> <td><i>Ride of the Valkyries</i>.<sup id="cite_ref-204" class="reference"><a href="#cite_note-204"><span class="cite-bracket">[</span>200<span class="cite-bracket">]</span></a></sup> <ul><li><a href="/wiki/LibreSSL" title="LibreSSL">LibreSSL</a> fork of <a href="/wiki/OpenSSL" title="OpenSSL">OpenSSL</a></li> <li><a href="/wiki/Apache_HTTP_Server" title="Apache HTTP Server">Apache HTTPD</a> removed from base</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="5.7"><span style="display: none;">Old version, no longer maintained:</span> 5.7 </td> <td>1 May 2015 </td> <td>29 March 2016 </td> <td><i>Source Fish</i>.<sup id="cite_ref-205" class="reference"><a href="#cite_note-205"><span class="cite-bracket">[</span>201<span class="cite-bracket">]</span></a></sup> <ul><li><code>rcctl(8)</code> utility to control daemons</li> <li><code>nginx(8)</code> removed from base</li> <li><a href="/wiki/Procfs" title="Procfs">procfs</a> has been removed</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="5.8"><span style="display: none;">Old version, no longer maintained:</span> 5.8 </td> <td>18 October 2015 </td> <td>1 September 2016 </td> <td><i>20 years ago today</i>, <i>Fanza</i>, <i>So much better</i>, <i>A Year in the Life</i>.<sup id="cite_ref-206" class="reference"><a href="#cite_note-206"><span class="cite-bracket">[</span>202<span class="cite-bracket">]</span></a></sup><br> <p>(20th anniversary release<sup id="cite_ref-207" class="reference"><a href="#cite_note-207"><span class="cite-bracket">[</span>203<span class="cite-bracket">]</span></a></sup>) </p> <ul><li><code>doas(1)</code> replacement of <a href="/wiki/Sudo" title="Sudo">sudo</a></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="5.9"><span style="display: none;">Old version, no longer maintained:</span> 5.9 </td> <td>29 March 2016 </td> <td>11 April 2017 </td> <td><i>Doctor W^X</i>, <i>Systemagic (Anniversary Edition)</i>.<sup id="cite_ref-208" class="reference"><a href="#cite_note-208"><span class="cite-bracket">[</span>204<span class="cite-bracket">]</span></a></sup> <ul><li><a href="/wiki/W%5EX" title="W^X">W^X</a> enforced in i386 kernel</li> <li><code>pledge(2)</code> process restriction</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="6.0"><span style="display: none;">Old version, no longer maintained:</span> 6.0 </td> <td>1 September 2016 </td> <td>9 October 2017 </td> <td><i>Another Smash of the Stack</i>, <i>Black Hat</i>, <i>Money</i>, <i>Comfortably Dumb (the misc song)</i>, <i>Mother</i>, <i>Goodbye</i> and <i>Wish you were Secure</i>, Release songs parodies of Pink Floyd's <a href="/wiki/The_Wall" title="The Wall">The Wall</a>, <a href="/wiki/Comfortably_Numb" title="Comfortably Numb">Comfortably Numb</a> and <a href="/wiki/Wish_You_Were_Here_(Pink_Floyd_song)" title="Wish You Were Here (Pink Floyd song)">Wish You Were Here</a>.<sup id="cite_ref-209" class="reference"><a href="#cite_note-209"><span class="cite-bracket">[</span>205<span class="cite-bracket">]</span></a></sup> <ul><li><code>vmm(4)</code> virtualization (disabled by default)</li> <li>Removed vax<sup id="cite_ref-210" class="reference"><a href="#cite_note-210"><span class="cite-bracket">[</span>206<span class="cite-bracket">]</span></a></sup> and 32-bit SPARC<sup id="cite_ref-211" class="reference"><a href="#cite_note-211"><span class="cite-bracket">[</span>207<span class="cite-bracket">]</span></a></sup> support</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="6.1"><span style="display: none;">Old version, no longer maintained:</span> 6.1 </td> <td>11 April 2017 </td> <td>15 April 2018 </td> <td><i>Winter of 95</i>, a parody of <a href="/wiki/Summer_of_%2769" title="Summer of '69">Summer of '69</a>.<sup id="cite_ref-212" class="reference"><a href="#cite_note-212"><span class="cite-bracket">[</span>208<span class="cite-bracket">]</span></a></sup> <ul><li><code>syspatch(8)</code> utility for binary base system updates</li> <li>new <code>arm64</code> platform</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="6.2"><span style="display: none;">Old version, no longer maintained:</span> 6.2 </td> <td>9 October 2017 </td> <td>18 October 2018 </td> <td><i>A three-line diff</i><sup id="cite_ref-213" class="reference"><a href="#cite_note-213"><span class="cite-bracket">[</span>209<span class="cite-bracket">]</span></a></sup> <ul><li><code>inteldrm(4)</code> Skylake/Kaby Lake/Cherryview devices</li> <li><code>clang(1)</code> base system compiler on <code>i386</code> and <code>amd64</code> platforms</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="6.3"><span style="display: none;">Old version, no longer maintained:</span> 6.3 </td> <td>2 April 2018 </td> <td>3 May 2019 </td> <td> <ul><li>SMP is supported on <code>arm64</code> platforms.</li> <li>Several parts of the network stack now run without KERNEL_LOCK().</li> <li>Multiple security improvements have been made, including Meltdown/Spectre (variant 2) mitigations. Intel CPU microcode is loaded on boot on <code>amd64</code>.</li> <li>pledge() has been modified to support "execpromises" (as the second argument).</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="6.4"><span style="display: none;">Old version, no longer maintained:</span> 6.4 </td> <td>18 October 2018 </td> <td>17 October 2019 </td> <td> <ul><li><code>unveil(2)</code> filesystem visibility restriction.<sup id="cite_ref-214" class="reference"><a href="#cite_note-214"><span class="cite-bracket">[</span>210<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="6.5"><span style="display: none;">Old version, no longer maintained:</span> 6.5 </td> <td>24 April 2019 </td> <td>19 May 2020 </td> <td> <ul><li>Support for parsing <a href="/wiki/NMEA_0183" title="NMEA 0183">NMEA 0183</a> altitude and ground speed <a href="/wiki/Hw.sensors" title="Hw.sensors">hw.sensors</a>.</li> <li><a href="/wiki/Xenocara" title="Xenocara">Xenocara</a>: <a href="/wiki/Xorg" class="mw-redirect" title="Xorg">Xorg</a> (X Window Server) is no longer <a href="/wiki/Setuid" title="Setuid">setuid</a>.</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="6.6"><span style="display: none;">Old version, no longer maintained:</span> 6.6 </td> <td>17 October 2019 </td> <td>18 October 2020 </td> <td> <ul><li><code>sysupgrade(8)</code> automates upgrades to new releases or snapshots.<sup id="cite_ref-215" class="reference"><a href="#cite_note-215"><span class="cite-bracket">[</span>211<span class="cite-bracket">]</span></a></sup></li> <li><code>amdgpu(4)</code> AMD RADEON GPU video driver.</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="6.7"><span style="display: none;">Old version, no longer maintained:</span> 6.7 </td> <td>19 May 2020 </td> <td>1 May 2021 </td> <td> <ul><li>Made ffs2 the default filesystem type on installs except for landisk, luna88k and sgi.<sup id="cite_ref-216" class="reference"><a href="#cite_note-216"><span class="cite-bracket">[</span>212<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="6.8"><span style="display: none;">Old version, no longer maintained:</span> 6.8 </td> <td>18 October 2020 </td> <td>14 October 2021 </td> <td> <ul><li>25th anniversary release.</li> <li>New powerpc64 platform.<sup id="cite_ref-217" class="reference"><a href="#cite_note-217"><span class="cite-bracket">[</span>213<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="6.9"><span style="display: none;">Old version, no longer maintained:</span> 6.9 </td> <td>1 May 2021 </td> <td>21 April 2022<sup id="cite_ref-release_219-0" class="reference"><a href="#cite_note-release-219"><span class="cite-bracket">[</span>note 5<span class="cite-bracket">]</span></a></sup> </td> <td> <ul><li>50th release.<sup id="cite_ref-220" class="reference"><a href="#cite_note-220"><span class="cite-bracket">[</span>215<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="7.0"><span style="display: none;">Old version, no longer maintained:</span> 7.0 </td> <td>14 October 2021 </td> <td>20 October 2022<sup id="cite_ref-release_219-1" class="reference"><a href="#cite_note-release-219"><span class="cite-bracket">[</span>note 5<span class="cite-bracket">]</span></a></sup> </td> <td> <ul><li>51st release.<sup id="cite_ref-:0_221-0" class="reference"><a href="#cite_note-:0-221"><span class="cite-bracket">[</span>216<span class="cite-bracket">]</span></a></sup></li> <li>New riscv64 platform.<sup id="cite_ref-:0_221-1" class="reference"><a href="#cite_note-:0-221"><span class="cite-bracket">[</span>216<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="7.1"><span style="display: none;">Old version, no longer maintained:</span> 7.1 </td> <td>21 April 2022 </td> <td>10 April 2023<sup id="cite_ref-release_219-2" class="reference"><a href="#cite_note-release-219"><span class="cite-bracket">[</span>note 5<span class="cite-bracket">]</span></a></sup> </td> <td> <ul><li>52nd release.<sup id="cite_ref-222" class="reference"><a href="#cite_note-222"><span class="cite-bracket">[</span>217<span class="cite-bracket">]</span></a></sup></li> <li>loongson support was temporarily discontinued for this release.<sup id="cite_ref-223" class="reference"><a href="#cite_note-223"><span class="cite-bracket">[</span>218<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="7.2"><span style="display: none;">Old version, no longer maintained:</span> 7.2 </td> <td>20 October 2022 </td> <td>16 October 2023<sup id="cite_ref-release_219-3" class="reference"><a href="#cite_note-release-219"><span class="cite-bracket">[</span>note 5<span class="cite-bracket">]</span></a></sup> </td> <td> <ul><li>53rd release.<sup id="cite_ref-224" class="reference"><a href="#cite_note-224"><span class="cite-bracket">[</span>219<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="7.3"><span style="display: none;">Old version, no longer maintained:</span> 7.3 </td> <td>10 April 2023 </td> <td>5 April 2024<sup id="cite_ref-release_219-4" class="reference"><a href="#cite_note-release-219"><span class="cite-bracket">[</span>note 5<span class="cite-bracket">]</span></a></sup> </td> <td> <ul><li>54th release.<sup id="cite_ref-225" class="reference"><a href="#cite_note-225"><span class="cite-bracket">[</span>220<span class="cite-bracket">]</span></a></sup></li> <li>Immutable permissions on address space regions.</li> <li>"xonly" support on many architectures.</li> <li>Support for full-disk encryption in the installer (via softraid driver)</li></ul> </td></tr> <tr> <td style="color:black; background-color: #FDB3AB;" title="Old version, no longer maintained" data-sort-value="7.4"><span style="display: none;">Old version, no longer maintained:</span> 7.4 </td> <td>16 October 2023 </td> <td>8 October 2024<sup id="cite_ref-release_219-5" class="reference"><a href="#cite_note-release-219"><span class="cite-bracket">[</span>note 5<span class="cite-bracket">]</span></a></sup> </td> <td> <ul><li>55th release.<sup id="cite_ref-226" class="reference"><a href="#cite_note-226"><span class="cite-bracket">[</span>221<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td class="templateVersion co" style="color:black; background-color: #FEF8C6;" title="Old version, yet still maintained" data-sort-value="7.5"><span style="display: none;">Old version, yet still maintained:</span> 7.5 </td> <td>5 April 2024 </td> <td>May 2025<sup id="cite_ref-release_219-6" class="reference"><a href="#cite_note-release-219"><span class="cite-bracket">[</span>note 5<span class="cite-bracket">]</span></a></sup> </td> <td> <ul><li>56th release.<sup id="cite_ref-227" class="reference"><a href="#cite_note-227"><span class="cite-bracket">[</span>222<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> <tr> <td class="templateVersion c" style="color:black; background-color: #D4F4B4;" title="Current stable version" data-sort-value="7.6"><span style="display: none;">Current stable version:</span> <b>7.6</b> </td> <td>8 October 2024 </td> <td>Oct 2025<sup id="cite_ref-release_219-7" class="reference"><a href="#cite_note-release-219"><span class="cite-bracket">[</span>note 5<span class="cite-bracket">]</span></a></sup> </td> <td> <ul><li>57th release.<sup id="cite_ref-228" class="reference"><a href="#cite_note-228"><span class="cite-bracket">[</span>223<span class="cite-bracket">]</span></a></sup></li></ul> </td></tr> </tbody></table> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(14)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="See_also">See also</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=22" title="Edit section: See also" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-14 collapsible-block" id="mf-section-14"> <style data-mw-deduplicate="TemplateStyles:r1239009302">.mw-parser-output .portalbox{padding:0;margin:0.5em 0;display:table;box-sizing:border-box;max-width:175px;list-style:none}.mw-parser-output .portalborder{border:1px solid var(--border-color-base,#a2a9b1);padding:0.1em;background:var(--background-color-neutral-subtle,#f8f9fa)}.mw-parser-output .portalbox-entry{display:table-row;font-size:85%;line-height:110%;height:1.9em;font-style:italic;font-weight:bold}.mw-parser-output .portalbox-image{display:table-cell;padding:0.2em;vertical-align:middle;text-align:center}.mw-parser-output .portalbox-link{display:table-cell;padding:0.2em 0.2em 0.2em 0.3em;vertical-align:middle}@media(min-width:720px){.mw-parser-output .portalleft{clear:left;float:left;margin:0.5em 1em 0.5em 0}.mw-parser-output .portalright{clear:right;float:right;margin:0.5em 0 0.5em 1em}}</style><ul role="navigation" aria-label="Portals" class="noprint portalbox portalborder portalright"> <li class="portalbox-entry"><span class="portalbox-image"><span class="noviewer" typeof="mw:File"><span><noscript><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/31/Free_and_open-source_software_logo_%282009%29.svg/28px-Free_and_open-source_software_logo_%282009%29.svg.png" decoding="async" width="28" height="28" class="mw-file-element" data-file-width="512" data-file-height="512"></noscript><span class="lazy-image-placeholder" style="width: 28px;height: 28px;" data-src="//upload.wikimedia.org/wikipedia/commons/thumb/3/31/Free_and_open-source_software_logo_%282009%29.svg/28px-Free_and_open-source_software_logo_%282009%29.svg.png" data-alt="" data-width="28" data-height="28" data-srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/31/Free_and_open-source_software_logo_%282009%29.svg/42px-Free_and_open-source_software_logo_%282009%29.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/31/Free_and_open-source_software_logo_%282009%29.svg/56px-Free_and_open-source_software_logo_%282009%29.svg.png 2x" data-class="mw-file-element">&nbsp;</span></span></span></span><span class="portalbox-link"><a href="/wiki/Portal:Free_and_open-source_software" title="Portal:Free and open-source software">Free and open-source software portal</a></span></li></ul> <ul><li><a href="/wiki/Comparison_of_BSD_operating_systems" title="Comparison of BSD operating systems">Comparison of BSD operating systems</a></li> <li><a href="/wiki/Comparison_of_open-source_operating_systems" title="Comparison of open-source operating systems">Comparison of open-source operating systems</a></li> <li><a href="/wiki/KAME_project" title="KAME project">KAME project</a>, responsible for OpenBSD's IPv6 support</li> <li><a href="/wiki/Lumina_(desktop_environment)" title="Lumina (desktop environment)">Lumina (desktop environment)</a></li> <li><a href="/wiki/OpenBSD_Journal" title="OpenBSD Journal">OpenBSD Journal</a></li> <li><a href="/wiki/OpenBSD_security_features" title="OpenBSD security features">OpenBSD security features</a></li> <li><a href="/wiki/Security-focused_operating_system" title="Security-focused operating system">Security-focused operating system</a></li> <li><a href="/wiki/Unix_security" title="Unix security">Unix security</a></li></ul> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(15)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Notes">Notes</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=23" title="Edit section: Notes" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-15 collapsible-block" id="mf-section-15"> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-survey_nuance-16"><span class="mw-cite-backlink">^ <a href="#cite_ref-survey_nuance_16-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-survey_nuance_16-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Multiple selections were permitted as users may use multiple BSD variants side by side.</span> </li> <li id="cite_note-ballista-41"><span class="mw-cite-backlink"><b><a href="#cite_ref-ballista_41-0">^</a></b></span> <span class="reference-text">Later renamed to Cybercop Scanner after SNI was purchased by <a href="/wiki/McAfee" title="McAfee">Network Associates</a>.</span> </li> <li id="cite_note-compiler-version-86"><span class="mw-cite-backlink"><b><a href="#cite_ref-compiler-version_86-0">^</a></b></span> <span class="reference-text">As of OpenBSD 6.3<sup class="plainlinks noexcerpt noprint asof-tag update" style="display:none;"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=OpenBSD&amp;action=edit">[update]</a></sup>, either Clang 5.0.1, GCC 4.2.1 or GCC 3.3.6 is shipped, depending on the platform.<sup id="cite_ref-man_clang-local_85-1" class="reference"><a href="#cite_note-man_clang-local-85"><span class="cite-bracket">[</span>83<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-man_gcc-local_45-2" class="reference"><a href="#cite_note-man_gcc-local-45"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup></span> </li> <li id="cite_note-138"><span class="mw-cite-backlink"><b><a href="#cite_ref-138">^</a></b></span> <span class="reference-text">Compare <a href="/wiki/NetBSD#Releases" title="NetBSD">release history of NetBSD</a>, which OpenBSD branched from</span> </li> <li id="cite_note-release-219"><span class="mw-cite-backlink">^ <a href="#cite_ref-release_219-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-release_219-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-release_219-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-release_219-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-release_219-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-release_219-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-release_219-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-release_219-7"><sup><i><b>h</b></i></sup></a></span> <span class="reference-text">OpenBSD is released roughly every 6 months targeting May and November and only the latest two releases receive security and reliability fixes for the base system.<sup id="cite_ref-OpenBSD_FAQ_218-0" class="reference"><a href="#cite_note-OpenBSD_FAQ-218"><span class="cite-bracket">[</span>214<span class="cite-bracket">]</span></a></sup></span> </li> </ol></div></div> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(16)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="References">References</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=24" title="Edit section: References" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-16 collapsible-block" id="mf-section-16"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239543626"><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-faq15-pkgs-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-faq15-pkgs_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/faq/faq15.html#PkgMgmt">"Package Management"</a>. <i>OpenBSD Frequently Asked Questions</i><span class="reference-accessdate">. Retrieved <span class="nowrap">1 June</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD+Frequently+Asked+Questions&amp;rft.atitle=Package+Management&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2Ffaq%2Ffaq15.html%23PkgMgmt&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-plat-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-plat_2-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.openbsd.org/plat.html">"Platforms"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">3 September</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=Platforms&amp;rft_id=http%3A%2F%2Fwww.openbsd.org%2Fplat.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-policy-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-policy_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-policy_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-policy_3-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.openbsd.org/policy.html">"Copyright Policy"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">13 December</span> 2011</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=Copyright+Policy&amp;rft_id=http%3A%2F%2Fwww.openbsd.org%2Fpolicy.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-coremail-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-coremail_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-coremail_4-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFde_Raadt2009" class="citation web cs1"><a href="/wiki/Theo_de_Raadt" title="Theo de Raadt">de Raadt, Theo</a> (29 March 2009). <a rel="nofollow" class="external text" href="http://www.theos.com/deraadt/coremail.html">"Archive of the mail conversation leading to Theo de Raadt's departure"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">15 January</span> 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Archive+of+the+mail+conversation+leading+to+Theo+de+Raadt%27s+departure&amp;rft.date=2009-03-29&amp;rft.aulast=de+Raadt&amp;rft.aufirst=Theo&amp;rft_id=http%3A%2F%2Fwww.theos.com%2Fderaadt%2Fcoremail.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFOpenBSD_Project2020" class="citation web cs1">OpenBSD Project (19 May 2020). <a rel="nofollow" class="external text" href="https://www.openbsd.org/">"OpenBSD"</a>. <i>OpenBSD.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">12 October</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD.org&amp;rft.atitle=OpenBSD&amp;rft.date=2020-05-19&amp;rft.au=OpenBSD+Project&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://murusfirewall.com/murus/">"Murus App, Apple PF for macOS from OpenBSD"</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Murus+App%2C+Apple+PF+for+macOS+from+OpenBSD&amp;rft_id=https%3A%2F%2Fmurusfirewall.com%2Fmurus%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://undeadly.org/cgi?action=article&amp;sid=20140506132000">"Android's C Library Has 173 Files of Unchanged OpenBSD Code"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">8 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Android%27s+C+Library+Has+173+Files+of+Unchanged+OpenBSD+Code&amp;rft_id=http%3A%2F%2Fundeadly.org%2Fcgi%3Faction%3Darticle%26sid%3D20140506132000&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://releases.llvm.org/7.0.0/LICENSE.TXT">"LLVM Release License"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">8 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=LLVM+Release+License&amp;rft_id=http%3A%2F%2Freleases.llvm.org%2F7.0.0%2FLICENSE.TXT&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://twitter.com/nocentino/status/996843655112613888">"OpenSSH for Windows"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">8 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenSSH+for+Windows&amp;rft_id=https%3A%2F%2Ftwitter.com%2Fnocentino%2Fstatus%2F996843655112613888&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-infoworld_new_years_resolution-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-infoworld_new_years_resolution_10-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGrimes2006" class="citation web cs1">Grimes, Roger A. 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Retrieved <span class="nowrap">1 November</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=marc.info&amp;rft.atitle=%27CVS%3A+cvs.openbsd.org%3A+src%27+-+MARC&amp;rft_id=https%3A%2F%2Fmarc.info%2F%3Fl%3Dopenbsd-cvs%26m%3D172443408727088%26w%3D2&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-survey-15"><span class="mw-cite-backlink">^ <a href="#cite_ref-survey_15-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-survey_15-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation report cs1"><a rel="nofollow" class="external text" href="http://www.bsdcertification.org/downloads/pr-20051031-usage-survey-en-en.pdf">BSD Usage Survey</a> <span class="cs1-format">(PDF)</span> (Report). The BSD Certification Group. 31 October 2005. p. 9<span class="reference-accessdate">. Retrieved <span class="nowrap">16 September</span> 2012</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=report&amp;rft.btitle=BSD+Usage+Survey&amp;rft.pages=9&amp;rft.pub=The+BSD+Certification+Group&amp;rft.date=2005-10-31&amp;rft_id=http%3A%2F%2Fwww.bsdcertification.org%2Fdownloads%2Fpr-20051031-usage-survey-en-en.pdf&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-17">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/faq/pf/example1.html">"OpenBSD PF - Building a Router"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">8 August</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenBSD+PF+-+Building+a+Router&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2Ffaq%2Fpf%2Fexample1.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-18">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://ctors.net/2013/12/30/openbsd_wireless_access_point">"Building an OpenBSD wireless access point"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">8 August</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Building+an+OpenBSD+wireless+access+point&amp;rft_id=https%3A%2F%2Fctors.net%2F2013%2F12%2F30%2Fopenbsd_wireless_access_point&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-closer-look-openbsd-19"><span class="mw-cite-backlink">^ <a href="#cite_ref-closer-look-openbsd_19-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-closer-look-openbsd_19-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMcIntire2006" class="citation web cs1">McIntire, Tim (8 August 2006). <a rel="nofollow" class="external text" href="http://www.ibm.com/developerworks/aix/library/au-openbsd.html">"Take a closer look at OpenBSD"</a>. <i>Developerworks</i>. <a href="/wiki/IBM" title="IBM">IBM</a><span class="reference-accessdate">. Retrieved <span class="nowrap">13 December</span> 2011</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Developerworks&amp;rft.atitle=Take+a+closer+look+at+OpenBSD&amp;rft.date=2006-08-08&amp;rft.aulast=McIntire&amp;rft.aufirst=Tim&amp;rft_id=http%3A%2F%2Fwww.ibm.com%2Fdeveloperworks%2Faix%2Flibrary%2Fau-openbsd.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-calyptix-20"><span class="mw-cite-backlink"><b><a href="#cite_ref-calyptix_20-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20201202054857/https://www.calyptix.com/products/models/ae800/">"AccessEnforcer Model AE800"</a>. <i>Calyptix Security</i>. Archived from <a rel="nofollow" class="external text" href="http://www.calyptix.com/products/models/ae800/">the original</a> on 2 December 2020<span class="reference-accessdate">. Retrieved <span class="nowrap">28 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Calyptix+Security&amp;rft.atitle=AccessEnforcer+Model+AE800&amp;rft_id=http%3A%2F%2Fwww.calyptix.com%2Fproducts%2Fmodels%2Fae800%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-genua-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-genua_21-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20200919032649/https://www.genua.de/en/products/high-resistance-firewall-genugate.html">"High Resistance Firewall genugate"</a>. <i>GeNUA</i>. Archived from <a rel="nofollow" class="external text" href="https://www.genua.de/en/products/high-resistance-firewall-genugate.html">the original</a> on 19 September 2020<span class="reference-accessdate">. Retrieved <span class="nowrap">29 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=GeNUA&amp;rft.atitle=High+Resistance+Firewall+genugate&amp;rft_id=https%3A%2F%2Fwww.genua.de%2Fen%2Fproducts%2Fhigh-resistance-firewall-genugate.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-rtmx-22"><span class="mw-cite-backlink"><b><a href="#cite_ref-rtmx_22-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.rtmx.com/">"RTMX O/S IEEE Real Time POSIX Operating Systems"</a>. <i>RTMX</i><span class="reference-accessdate">. Retrieved <span class="nowrap">13 December</span> 2011</span>. <q>RTMX O/S is a product extension to OpenBSD Unix-like operating system with emphasis on embedded, dedicated applications.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=RTMX&amp;rft.atitle=RTMX+O%2FS+IEEE+Real+Time+POSIX+Operating+Systems&amp;rft_id=http%3A%2F%2Fwww.rtmx.com%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-vantronix-23"><span class="mw-cite-backlink"><b><a href="#cite_ref-vantronix_23-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20120101215138/http://www.vantronix.com/">".vantronix secure system"</a>. <i>Compumatica secure networks</i>. Archived from <a rel="nofollow" class="external text" href="http://www.vantronix.com/">the original</a> on 1 January 2012<span class="reference-accessdate">. Retrieved <span class="nowrap">13 December</span> 2011</span>. <q>The Next Generation Firewall is not a standalone device, it is a Router for operation in security critical environments with high requirements for availability, comprehensive support as well as reliable and trusted systems powered by OpenBSD.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Compumatica+secure+networks&amp;rft.atitle=.vantronix+secure+system&amp;rft_id=http%3A%2F%2Fwww.vantronix.com%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-wsu35_review-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-wsu35_review_24-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDohnert2004" class="citation cs2">Dohnert, Roberto J. 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Retrieved <span class="nowrap">23 June</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Milltech+Consulting+Inc.&amp;rft.date=2019&amp;rft_id=https%3A%2F%2Fwww.milltech.com%2Fabout&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-core-force-28"><span class="mw-cite-backlink"><b><a href="#cite_ref-core-force_28-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation cs2"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20111128042152/http://corelabs.coresecurity.com/index.php?module=Wiki&amp;action=view&amp;type=project&amp;name=Core_Force">"Core Force"</a>, <i>Core Labs</i>, archived from <a rel="nofollow" class="external text" href="http://corelabs.coresecurity.com/index.php?module=Wiki&amp;action=view&amp;type=project&amp;name=Core_Force">the original</a> on 28 November 2011<span class="reference-accessdate">, retrieved <span class="nowrap">13 December</span> 2011</span>, <q>CORE FORCE provides inbound and outbound stateful packet filtering for TCP/IP protocols using a Windows port of OpenBSD's PF firewall, granular file system and registry access control and programs' integrity validation.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Core+Labs&amp;rft.atitle=Core+Force&amp;rft_id=http%3A%2F%2Fcorelabs.coresecurity.com%2Findex.php%3Fmodule%3DWiki%26action%3Dview%26type%3Dproject%26name%3DCore_Force&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-29"><span class="mw-cite-backlink"><b><a href="#cite_ref-29">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://docs.freebsd.org/en/books/handbook/firewalls/">"Chapter 31. 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Archived from <a rel="nofollow" class="external text" href="http://www.darkreading.com/vulnerabilities-and-threats/openbsd-founder-believes-fbi-built-ipsec-backdoor/d/d-id/1095055">the original</a> on 11 July 2017.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=InformationWeek%3A+DARKreading&amp;rft.atitle=OpenBSD+Founder+Believes+FBI+Built+IPsec+Backdoor&amp;rft.date=2010-12-22&amp;rft.aulast=Schwartz&amp;rft.aufirst=Mathew+J.&amp;rft_id=http%3A%2F%2Fwww.darkreading.com%2Fvulnerabilities-and-threats%2Fopenbsd-founder-believes-fbi-built-ipsec-backdoor%2Fd%2Fd-id%2F1095055&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-63"><span class="mw-cite-backlink"><b><a href="#cite_ref-63">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFVan_Sprundel2017" class="citation web cs1">Van Sprundel, Ilja (December 2017). <a rel="nofollow" class="external text" href="https://media.ccc.de/v/34c3-8968-are_all_bsds_created_equally">"Are all BSDs created equally? — A survey of BSD kernel vulnerabilities"</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Are+all+BSDs+created+equally%3F+%E2%80%94+A+survey+of+BSD+kernel+vulnerabilities&amp;rft.date=2017-12&amp;rft.aulast=Van+Sprundel&amp;rft.aufirst=Ilja&amp;rft_id=https%3A%2F%2Fmedia.ccc.de%2Fv%2F34c3-8968-are_all_bsds_created_equally&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-64"><span class="mw-cite-backlink"><b><a href="#cite_ref-64">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFVan_Sprundel2017" class="citation web cs1">Van Sprundel, Ilja (July 2017). <a rel="nofollow" class="external text" href="https://media.defcon.org/DEF%20CON%2025/DEF%20CON%2025%20presentations/DEF%20CON%2025%20-%20Ilja-van-Sprundel-BSD-Kern-Vulns.pdf">"Are all BSDs created equally? — A survey of BSD kernel vulnerabilities"</a> <span class="cs1-format">(PDF)</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Are+all+BSDs+created+equally%3F+%E2%80%94+A+survey+of+BSD+kernel+vulnerabilities&amp;rft.date=2017-07&amp;rft.aulast=Van+Sprundel&amp;rft.aufirst=Ilja&amp;rft_id=https%3A%2F%2Fmedia.defcon.org%2FDEF%2520CON%252025%2FDEF%2520CON%252025%2520presentations%2FDEF%2520CON%252025%2520-%2520Ilja-van-Sprundel-BSD-Kern-Vulns.pdf&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-65"><span class="mw-cite-backlink"><b><a href="#cite_ref-65">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://fahrplan.events.ccc.de/congress/2019/Fahrplan/events/10519.html">"Lecture: A systematic evaluation of OpenBSD's mitigations"</a>. December 2019.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Lecture%3A+A+systematic+evaluation+of+OpenBSD%27s+mitigations&amp;rft.date=2019-12&amp;rft_id=https%3A%2F%2Ffahrplan.events.ccc.de%2Fcongress%2F2019%2FFahrplan%2Fevents%2F10519.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-66"><span class="mw-cite-backlink"><b><a href="#cite_ref-66">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://isopenbsdsecu.re/">"Is OpenBSD secure?"</a>. 29 December 2019.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Is+OpenBSD+secure%3F&amp;rft.date=2019-12-29&amp;rft_id=https%3A%2F%2Fisopenbsdsecu.re%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-67"><span class="mw-cite-backlink"><b><a href="#cite_ref-67">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/httpd/">"src/usr.sbin/httpd/"</a>. <i>OpenBSD CVSWeb</i>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD+CVSWeb&amp;rft.atitle=src%2Fusr.sbin%2Fhttpd%2F&amp;rft_id=https%3A%2F%2Fcvsweb.openbsd.org%2Fcgi-bin%2Fcvsweb%2Fsrc%2Fusr.sbin%2Fhttpd%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-68"><span class="mw-cite-backlink"><b><a href="#cite_ref-68">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.freshports.org/www/obhttpd/">"web/obhttpd: OpenBSD http server"</a>. <i><a href="/wiki/Freshports" class="mw-redirect" title="Freshports">Freshports</a></i>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Freshports&amp;rft.atitle=web%2Fobhttpd%3A+OpenBSD+http+server&amp;rft_id=https%3A%2F%2Fwww.freshports.org%2Fwww%2Fobhttpd%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-69"><span class="mw-cite-backlink"><b><a href="#cite_ref-69">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.libressl.org">"LibreSSL"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">8 August</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=LibreSSL&amp;rft_id=https%3A%2F%2Fwww.libressl.org&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-openbgpd-70"><span class="mw-cite-backlink">^ <a href="#cite_ref-openbgpd_70-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-openbgpd_70-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.openbgpd.org">"OpenBGPD"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">8 August</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenBGPD&amp;rft_id=http%3A%2F%2Fwww.openbgpd.org&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-71"><span class="mw-cite-backlink"><b><a href="#cite_ref-71">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20170514230834/http://www.openiked.org/">"OpenIKED"</a>. Archived from <a rel="nofollow" class="external text" href="https://www.openiked.org">the original</a> on 14 May 2017<span class="reference-accessdate">. Retrieved <span class="nowrap">8 August</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenIKED&amp;rft_id=https%3A%2F%2Fwww.openiked.org&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-72"><span class="mw-cite-backlink"><b><a href="#cite_ref-72">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.openntpd.org">"OpenNTPD"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">8 August</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenNTPD&amp;rft_id=http%3A%2F%2Fwww.openntpd.org&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-73"><span class="mw-cite-backlink"><b><a href="#cite_ref-73">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.opensmtpd.org">"OpenSMTPD"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">8 August</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenSMTPD&amp;rft_id=https%3A%2F%2Fwww.opensmtpd.org&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-74"><span class="mw-cite-backlink"><b><a href="#cite_ref-74">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openssh.com">"OpenSSH"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">8 August</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenSSH&amp;rft_id=https%3A%2F%2Fwww.openssh.com&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-freebsd_openssh-base-75"><span class="mw-cite-backlink"><b><a href="#cite_ref-freebsd_openssh-base_75-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://svnweb.freebsd.org/base/stable/10/crypto/openssh/README?view=markup">"Contents of /stable/10/crypto/openssh/README"</a>. <i>svnweb.freebsd.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">19 May</span> 2016</span>. <q>This is the port of OpenBSD's excellent OpenSSH to Linux and other Unices.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=svnweb.freebsd.org&amp;rft.atitle=Contents+of+%2Fstable%2F10%2Fcrypto%2Fopenssh%2FREADME&amp;rft_id=https%3A%2F%2Fsvnweb.freebsd.org%2Fbase%2Fstable%2F10%2Fcrypto%2Fopenssh%2FREADME%3Fview%3Dmarkup&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-netbsd_openssh-base-76"><span class="mw-cite-backlink"><b><a href="#cite_ref-netbsd_openssh-base_76-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://cvsweb.netbsd.org/bsdweb.cgi/src/crypto/external/bsd/openssh/dist/README?rev=1.4&amp;content-type=text/x-cvsweb-markup&amp;only_with_tag=MAIN">"src/crypto/external/bsd/openssh/dist/README – view – 1.4"</a>. <i>NetBSD CVS Repositories</i><span class="reference-accessdate">. Retrieved <span class="nowrap">19 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=NetBSD+CVS+Repositories&amp;rft.atitle=src%2Fcrypto%2Fexternal%2Fbsd%2Fopenssh%2Fdist%2FREADME+%E2%80%93+view+%E2%80%93+1.4&amp;rft_id=http%3A%2F%2Fcvsweb.netbsd.org%2Fbsdweb.cgi%2Fsrc%2Fcrypto%2Fexternal%2Fbsd%2Fopenssh%2Fdist%2FREADME%3Frev%3D1.4%26content-type%3Dtext%2Fx-cvsweb-markup%26only_with_tag%3DMAIN&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-dragonflybsd_openssh-base-77"><span class="mw-cite-backlink"><b><a href="#cite_ref-dragonflybsd_openssh-base_77-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://gitweb.dragonflybsd.org/dragonfly.git/blob/HEAD:/crypto/openssh/README">"dragonfly.git/blob – crypto/openssh/README"</a>. <i>gitweb.dragonflybsd.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">19 May</span> 2016</span>. <q>This is the port of OpenBSD's excellent OpenSSH to Linux and other Unices.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=gitweb.dragonflybsd.org&amp;rft.atitle=dragonfly.git%2Fblob+%E2%80%93+crypto%2Fopenssh%2FREADME&amp;rft_id=https%3A%2F%2Fgitweb.dragonflybsd.org%2Fdragonfly.git%2Fblob%2FHEAD%3A%2Fcrypto%2Fopenssh%2FREADME&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-archlinux_openssh-portable-78"><span class="mw-cite-backlink"><b><a href="#cite_ref-archlinux_openssh-portable_78-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.archlinux.org/packages/core/x86_64/openssh/">"Arch Linux – openssh 7.2p2-1 (x86_64)"</a>. <i><a href="/wiki/Arch_Linux" title="Arch Linux">Arch Linux</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">17 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Arch+Linux&amp;rft.atitle=Arch+Linux+%E2%80%93+openssh+7.2p2-1+%28x86_64%29&amp;rft_id=https%3A%2F%2Fwww.archlinux.org%2Fpackages%2Fcore%2Fx86_64%2Fopenssh%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-opensuse_openssh-portable-79"><span class="mw-cite-backlink"><b><a href="#cite_ref-opensuse_openssh-portable_79-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://software.opensuse.org/package/openssh">"openssh"</a>. <i><a href="/wiki/OpenSUSE" title="OpenSUSE">OpenSUSE</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">17 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenSUSE&amp;rft.atitle=openssh&amp;rft_id=https%3A%2F%2Fsoftware.opensuse.org%2Fpackage%2Fopenssh&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-debian_openssh-portable-80"><span class="mw-cite-backlink"><b><a href="#cite_ref-debian_openssh-portable_80-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://packages.debian.org/jessie/openssh-client">"Debian – Details of package openssh-client in jessie"</a>. <i><a href="/wiki/Debian" title="Debian">Debian</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">17 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Debian&amp;rft.atitle=Debian+%E2%80%93+Details+of+package+openssh-client+in+jessie&amp;rft_id=https%3A%2F%2Fpackages.debian.org%2Fjessie%2Fopenssh-client&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-Fenollosa-81"><span class="mw-cite-backlink">^ <a href="#cite_ref-Fenollosa_81-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Fenollosa_81-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Fenollosa_81-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://cfenollosa.com/blog/openbsd-from-a-veteran-linux-user-perspective.html">"OpenBSD from a veteran Linux user perspective"</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenBSD+from+a+veteran+Linux+user+perspective&amp;rft_id=https%3A%2F%2Fcfenollosa.com%2Fblog%2Fopenbsd-from-a-veteran-linux-user-perspective.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-cuug-82"><span class="mw-cite-backlink"><b><a href="#cite_ref-cuug_82-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDe_Raadt2013" class="citation web cs1">De Raadt, Theo (18 June 2013). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20131005010536/http://www.yycix.ca/talks/cuug-2013-06-18/an-internet-exchange-for-Calgary.pdf">"An Internet Exchange for Calgary"</a> <span class="cs1-format">(PDF)</span>. Archived from <a rel="nofollow" class="external text" href="http://www.yycix.ca/talks/cuug-2013-06-18/an-internet-exchange-for-Calgary.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 5 October 2013<span class="reference-accessdate">. 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Archived from <a rel="nofollow" class="external text" href="http://kerneltrap.org/node/6550">the original</a> on 24 April 2013.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=KernelTrap&amp;rft.atitle=Interview%3A+Theo+de+Raadt&amp;rft.date=2006-05-02&amp;rft.aulast=Andrews&amp;rft.aufirst=Jeremy&amp;rft_id=http%3A%2F%2Fkerneltrap.org%2Fnode%2F6550&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-openbsd_faq_building_system_source-88"><span class="mw-cite-backlink"><b><a href="#cite_ref-openbsd_faq_building_system_source_88-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/faq/faq5.html#Flavors">"OpenBSD's flavors"</a>. <i>OpenBSD Frequently Asked Questions</i><span class="reference-accessdate">. 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Retrieved <span class="nowrap">13 December</span> 2011</span>. <q>I also hosted and helped create the first Anonymous CVS server on the Internet (the original anoncvs.openbsd.org [...]</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Chuck+Cranor%27s+Home+Page&amp;rft.aulast=Cranor&amp;rft.aufirst=Chuck+D.&amp;rft_id=http%3A%2F%2Fchuck.cranor.org%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-98"><span class="mw-cite-backlink"><b><a href="#cite_ref-98">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFresh" class="citation web cs1">Fresh, Andrew. <a rel="nofollow" class="external text" href="https://cvs.afresh1.com/~andrew/o/why-cvs.html">"Why OpenBSD Developers Use CVS"</a><span class="reference-accessdate">. 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Took a while and a lot of mails, but it is worth it.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=cvsweb.openbsd.org&amp;rft.atitle=src%2Fusr.sbin%2Fmrinfo%2Fmrinfo.c+%E2%80%93+view+%E2%80%93+1.7&amp;rft.date=2001-07-31&amp;rft_id=http%3A%2F%2Fcvsweb.openbsd.org%2Fcgi-bin%2Fcvsweb%2Fsrc%2Fusr.sbin%2Fmrinfo%2Fmrinfo.c%3Frev%3D1.7%26content-type%3Dtext%2Fx-cvsweb-markup&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-cvsweb_map-mbone_xerox-106"><span class="mw-cite-backlink"><b><a href="#cite_ref-cvsweb_map-mbone_xerox_106-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/map-mbone/mapper.c?rev=1.5&amp;content-type=text/x-cvsweb-markup">"src/usr.sbin/map-mbone/mapper.c – view – 1.5"</a>. <i>cvsweb.openbsd.org</i>. 31 July 2001<span class="reference-accessdate">. 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Took a while and a lot of mails, but it is worth it.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=cvsweb.openbsd.org&amp;rft.atitle=src%2Fusr.sbin%2Fmap-mbone%2Fmapper.c+%E2%80%93+view+%E2%80%93+1.5&amp;rft.date=2001-07-31&amp;rft_id=http%3A%2F%2Fcvsweb.openbsd.org%2Fcgi-bin%2Fcvsweb%2Fsrc%2Fusr.sbin%2Fmap-mbone%2Fmapper.c%3Frev%3D1.5%26content-type%3Dtext%2Fx-cvsweb-markup&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-djb-ports-removed-1-107"><span class="mw-cite-backlink"><b><a href="#cite_ref-djb-ports-removed-1_107-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDe_Raadt2001" class="citation mailinglist cs1"><a href="/wiki/Theo_de_Raadt" title="Theo de Raadt">De Raadt, Theo</a> (24 August 2001). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160419110701/http://archives.neohapsis.com/archives/openbsd/2001-08/2544.html">"Re: Why were all DJB's ports removed? 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Retrieved <span class="nowrap">20 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=Orders&amp;rft_id=http%3A%2F%2Fwww.openbsd.org%2Forders.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-faq15-132"><span class="mw-cite-backlink">^ <a href="#cite_ref-faq15_132-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-faq15_132-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.openbsd.org/faq/faq15.html">"Packages and Ports"</a>. <i>OpenBSD Frequently Asked Questions</i><span class="reference-accessdate">. Retrieved <span class="nowrap">22 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD+Frequently+Asked+Questions&amp;rft.atitle=Packages+and+Ports&amp;rft_id=http%3A%2F%2Fwww.openbsd.org%2Ffaq%2Ffaq15.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-mckusick_openbsd_shirt-133"><span class="mw-cite-backlink"><b><a href="#cite_ref-mckusick_openbsd_shirt_133-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.mckusick.com/beastie/shirts/openbsd.html">"OpenBSD"</a>. <i>mckusick.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">12 December</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=mckusick.com&amp;rft.atitle=OpenBSD&amp;rft_id=http%3A%2F%2Fwww.mckusick.com%2Fbeastie%2Fshirts%2Fopenbsd.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-openbsd_2.5_release-134"><span class="mw-cite-backlink"><b><a href="#cite_ref-openbsd_2.5_release_134-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDe_Raadt1999" class="citation mailinglist cs1"><a href="/wiki/Theo_de_Raadt" title="Theo de Raadt">De Raadt, Theo</a> (19 May 1999). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20140202092721/http://www.monkey.org/openbsd/archive/announce/9905/msg00002.html">"OpenBSD 2.5 Release Announcement"</a>. <i>openbsd-announce</i> (Mailing list). Archived from <a rel="nofollow" class="external text" href="http://www.monkey.org/openbsd/archive/announce/9905/msg00002.html">the original</a> on 2 February 2014. <q>OpenBSD 2.5 introduces the new Cop daemon image done by cartoonist Ty Semeka.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenBSD+2.5+Release+Announcement&amp;rft.date=1999-05-19&amp;rft.aulast=De+Raadt&amp;rft.aufirst=Theo&amp;rft_id=http%3A%2F%2Fwww.monkey.org%2Fopenbsd%2Farchive%2Fannounce%2F9905%2Fmsg00002.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-2.7-release-135"><span class="mw-cite-backlink"><b><a href="#cite_ref-2.7-release_135-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.openbsd.org/27.html">"OpenBSD 2.7"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">22 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+2.7&amp;rft_id=http%3A%2F%2Fwww.openbsd.org%2F27.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-4.0-review-136"><span class="mw-cite-backlink"><b><a href="#cite_ref-4.0-review_136-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMatzan2006" class="citation web cs1">Matzan, Jem (1 December 2006). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120111112331/http://www.softwareinreview.com/bsd/openbsd_4.0_review.html">"OpenBSD 4.0 review"</a>. <i>Software in Review</i>. Archived from <a rel="nofollow" class="external text" href="http://www.softwareinreview.com/bsd/openbsd_4.0_review.html">the original</a> on 11 January 2012<span class="reference-accessdate">. Retrieved <span class="nowrap">13 December</span> 2011</span>. <q>Each OpenBSD release has a graphical theme and a song that goes with it. The theme reflects a major concern that the OpenBSD programmers are addressing or bringing to light.</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Software+in+Review&amp;rft.atitle=OpenBSD+4.0+review&amp;rft.date=2006-12-01&amp;rft.aulast=Matzan&amp;rft.aufirst=Jem&amp;rft_id=http%3A%2F%2Fwww.softwareinreview.com%2Fbsd%2Fopenbsd_4.0_review.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-137"><span class="mw-cite-backlink"><b><a href="#cite_ref-137">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://undeadly.org/cgi?action=article&amp;sid=20061019013207">"Undeadly"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Undeadly&amp;rft_id=http%3A%2F%2Fundeadly.org%2Fcgi%3Faction%3Darticle%26sid%3D20061019013207&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-139"><span class="mw-cite-backlink"><b><a href="#cite_ref-139">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/19971018165539/http://www.openbsd.org/plus.html">"Changes"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.openbsd.org/plus.html">the original</a> on 18 October 1997.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Changes&amp;rft_id=http%3A%2F%2Fwww.openbsd.org%2Fplus.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-140"><span class="mw-cite-backlink"><b><a href="#cite_ref-140">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://wolfram.schneider.org/bsd/ftp/releases/OpenBSD-2.0">"OpenBSD 2.0"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenBSD+2.0&amp;rft_id=http%3A%2F%2Fwolfram.schneider.org%2Fbsd%2Fftp%2Freleases%2FOpenBSD-2.0&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-141"><span class="mw-cite-backlink"><b><a href="#cite_ref-141">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/21.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F21.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-142"><span class="mw-cite-backlink"><b><a href="#cite_ref-142">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/22.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F22.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-143"><span class="mw-cite-backlink"><b><a href="#cite_ref-143">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/23.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F23.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-144"><span class="mw-cite-backlink"><b><a href="#cite_ref-144">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/24.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F24.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-145"><span class="mw-cite-backlink"><b><a href="#cite_ref-145">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/25.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F25.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-146"><span class="mw-cite-backlink"><b><a href="#cite_ref-146">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/26.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F26.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-147"><span class="mw-cite-backlink"><b><a href="#cite_ref-147">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/27.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F27.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-148"><span class="mw-cite-backlink"><b><a href="#cite_ref-148">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/plus28.html">"OpenBSD 2.8 Changelog"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">10 August</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenBSD+2.8+Changelog&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2Fplus28.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-149"><span class="mw-cite-backlink"><b><a href="#cite_ref-149">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/29.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F29.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-150"><span class="mw-cite-backlink"><b><a href="#cite_ref-150">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/30.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F30.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-151"><span class="mw-cite-backlink"><b><a href="#cite_ref-151">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/31.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F31.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-152"><span class="mw-cite-backlink"><b><a href="#cite_ref-152">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/errata31.html#sshderrata31%C2%A0006">"Errata"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Errata&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2Ferrata31.html%23sshderrata31+006&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-153"><span class="mw-cite-backlink"><b><a href="#cite_ref-153">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/32.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F32.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-154"><span class="mw-cite-backlink"><b><a href="#cite_ref-154">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/33.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F33.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-155"><span class="mw-cite-backlink"><b><a href="#cite_ref-155">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/34.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F34.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-156"><span class="mw-cite-backlink"><b><a href="#cite_ref-156">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.stearns.org/p0f/p0f">"p0f"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=p0f&amp;rft_id=http%3A%2F%2Fwww.stearns.org%2Fp0f%2Fp0f&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span><sup class="noprint Inline-Template"><span style="white-space: nowrap;">[<i><a href="/wiki/Wikipedia:Link_rot" title="Wikipedia:Link rot"><span title=" Dead link tagged March 2023">permanent dead link</span></a></i><span style="visibility:hidden; color:transparent; padding-left:2px">‍</span>]</span></sup></span> </li> <li id="cite_note-OpenBSD_Innovations-ASLR-PIE-157"><span class="mw-cite-backlink">^ <a href="#cite_ref-OpenBSD_Innovations-ASLR-PIE_157-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-OpenBSD_Innovations-ASLR-PIE_157-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-OpenBSD_Innovations-ASLR-PIE_157-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/innovations.html">"OpenBSD Innovations"</a>. The OpenBSD project<span class="reference-accessdate">. Retrieved <span class="nowrap">12 September</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenBSD+Innovations&amp;rft.pub=The+OpenBSD+project&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2Finnovations.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-sensors-abc2009-158"><span class="mw-cite-backlink">^ <a href="#cite_ref-sensors-abc2009_158-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-sensors-abc2009_158-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-sensors-abc2009_158-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFConstantine_A._MureninRaouf_Boutaba2009" class="citation conference cs1">Constantine A. Murenin; <a href="/wiki/Raouf_Boutaba" title="Raouf Boutaba">Raouf Boutaba</a> (17 March 2009). "6. Evolution of the framework". <a rel="nofollow" class="external text" href="http://www.openbsd.org/papers/asiabsdcon2009-sensors-paper.pdf"><i>OpenBSD Hardware Sensors Framework</i></a> <span class="cs1-format">(PDF)</span>. AsiaBSDCon 2009 Proceedings, 12–15 March 2009. Tokyo University of Science, Tokyo, Japan (published 14 March 2009). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20100620015220/http://openbsd.org/papers/asiabsdcon2009-sensors-paper.pdf">Archived</a> <span class="cs1-format">(PDF)</span> from the original on 20 June 2010<span class="reference-accessdate">. Retrieved <span class="nowrap">4 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=conference&amp;rft.atitle=6.+Evolution+of+the+framework&amp;rft.btitle=OpenBSD+Hardware+Sensors+Framework.&amp;rft.place=Tokyo+University+of+Science%2C+Tokyo%2C+Japan&amp;rft.date=2009-03-17&amp;rft.au=Constantine+A.+Murenin&amp;rft.au=Raouf+Boutaba&amp;rft_id=http%3A%2F%2Fwww.openbsd.org%2Fpapers%2Fasiabsdcon2009-sensors-paper.pdf&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span> <a rel="nofollow" class="external text" href="https://2009.asiabsdcon.org/papers/abc2009-P3B-paper.pdf">Alt URL</a></span> </li> <li id="cite_note-159"><span class="mw-cite-backlink"><b><a href="#cite_ref-159">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/35.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F35.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-onlamp-35-1-160"><span class="mw-cite-backlink"><b><a href="#cite_ref-onlamp-35-1_160-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFederico_Biancuzzi2004" class="citation web cs1">Federico Biancuzzi (15 April 2004). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20040508140530/http://www.onlamp.com/lpt/a/4767">"OpenBSD PF Developer Interview"</a>. <i>ONLamp</i>. <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a>. Archived from <a rel="nofollow" class="external text" href="http://www.onlamp.com/lpt/a/4767">the original</a> on 8 May 2004<span class="reference-accessdate">. Retrieved <span class="nowrap">20 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=ONLamp&amp;rft.atitle=OpenBSD+PF+Developer+Interview&amp;rft.date=2004-04-15&amp;rft.au=Federico+Biancuzzi&amp;rft_id=http%3A%2F%2Fwww.onlamp.com%2Flpt%2Fa%2F4767&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-onlamp-35-2-161"><span class="mw-cite-backlink"><b><a href="#cite_ref-onlamp-35-2_161-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFederico_Biancuzzi2004" class="citation web cs1">Federico Biancuzzi (6 May 2004). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20040619005622/http://www.onlamp.com/lpt/a/4839">"OpenBSD PF Developer Interview, Part 2"</a>. <i>ONLamp</i>. <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a>. Archived from <a rel="nofollow" class="external text" href="http://www.onlamp.com/lpt/a/4839">the original</a> on 19 June 2004<span class="reference-accessdate">. Retrieved <span class="nowrap">20 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=ONLamp&amp;rft.atitle=OpenBSD+PF+Developer+Interview%2C+Part+2&amp;rft.date=2004-05-06&amp;rft.au=Federico+Biancuzzi&amp;rft_id=http%3A%2F%2Fwww.onlamp.com%2Flpt%2Fa%2F4839&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-162"><span class="mw-cite-backlink"><b><a href="#cite_ref-162">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://man.openbsd.org/bc.1">"bc(1)"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=bc%281%29&amp;rft_id=https%3A%2F%2Fman.openbsd.org%2Fbc.1&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-163"><span class="mw-cite-backlink"><b><a href="#cite_ref-163">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://man.openbsd.org/OpenBSD-5.9/man1/dc.1">"dc(1)"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=dc%281%29&amp;rft_id=https%3A%2F%2Fman.openbsd.org%2FOpenBSD-5.9%2Fman1%2Fdc.1&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-164"><span class="mw-cite-backlink"><b><a href="#cite_ref-164">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://man.openbsd.org/nm.1">"nm(1)"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=nm%281%29&amp;rft_id=https%3A%2F%2Fman.openbsd.org%2Fnm.1&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-165"><span class="mw-cite-backlink"><b><a href="#cite_ref-165">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://man.openbsd.org/size.1">"size(1)"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=size%281%29&amp;rft_id=https%3A%2F%2Fman.openbsd.org%2Fsize.1&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-166"><span class="mw-cite-backlink"><b><a href="#cite_ref-166">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/36.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F36.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-167"><span class="mw-cite-backlink"><b><a href="#cite_ref-167">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openntpd.org/goals.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openntpd.org%2Fgoals.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-onlamp-36-168"><span class="mw-cite-backlink">^ <a href="#cite_ref-onlamp-36_168-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-onlamp-36_168-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFederico_Biancuzzi2004" class="citation web cs1">Federico Biancuzzi (28 October 2004). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20041029232336/http://www.onlamp.com/lpt/a/5302">"OpenBSD 3.6 Live"</a>. <i>ONLamp</i>. <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a>. Archived from <a rel="nofollow" class="external text" href="http://www.onlamp.com/lpt/a/5302">the original</a> on 29 October 2004<span class="reference-accessdate">. Retrieved <span class="nowrap">20 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=ONLamp&amp;rft.atitle=OpenBSD+3.6+Live&amp;rft.date=2004-10-28&amp;rft.au=Federico+Biancuzzi&amp;rft_id=http%3A%2F%2Fwww.onlamp.com%2Flpt%2Fa%2F5302&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-169"><span class="mw-cite-backlink"><b><a href="#cite_ref-169">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/37.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F37.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-onlamp-37-170"><span class="mw-cite-backlink"><b><a href="#cite_ref-onlamp-37_170-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFederico_Biancuzzi2005" class="citation web cs1">Federico Biancuzzi (19 May 2005). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20050521234307/http://www.onlamp.com/pub/a/bsd/2005/05/19/openbsd_3_7.html">"OpenBSD 3.7: The Wizard of OS"</a>. <i>ONLamp</i>. <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a>. Archived from <a rel="nofollow" class="external text" href="http://www.onlamp.com/pub/a/bsd/2005/05/19/openbsd_3_7.html">the original</a> on 21 May 2005<span class="reference-accessdate">. Retrieved <span class="nowrap">20 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=ONLamp&amp;rft.atitle=OpenBSD+3.7%3A+The+Wizard+of+OS&amp;rft.date=2005-05-19&amp;rft.au=Federico+Biancuzzi&amp;rft_id=http%3A%2F%2Fwww.onlamp.com%2Fpub%2Fa%2Fbsd%2F2005%2F05%2F19%2Fopenbsd_3_7.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-171"><span class="mw-cite-backlink"><b><a href="#cite_ref-171">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/38.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F38.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-172"><span class="mw-cite-backlink"><b><a href="#cite_ref-172">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFde_Raadt" class="citation web cs1"><a href="/wiki/Theo_de_Raadt" title="Theo de Raadt">de Raadt, Theo</a>. <a rel="nofollow" class="external text" href="https://marc.info/?l=openbsd-cvs&amp;m=111700017509177&amp;w=2">"CVS: cvs.openbsd.org: src"</a>. <i>OpenBSD-CVS mailing list</i>. <q>Removed files: libexec/telnetd</q></cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD-CVS+mailing+list&amp;rft.atitle=CVS%3A+cvs.openbsd.org%3A+src&amp;rft.aulast=de+Raadt&amp;rft.aufirst=Theo&amp;rft_id=http%3A%2F%2Fmarc.info%2F%3Fl%3Dopenbsd-cvs%26m%3D111700017509177%26w%3D2&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-onlamp-38-173"><span class="mw-cite-backlink"><b><a href="#cite_ref-onlamp-38_173-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFederico_Biancuzzi2005" class="citation web cs1">Federico Biancuzzi (20 October 2005). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20051227050708/http://www.onlamp.com/lpt/a/6270">"OpenBSD 3.8: Hackers of the Lost RAID"</a>. <i>ONLamp</i>. <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a>. Archived from <a rel="nofollow" class="external text" href="http://www.onlamp.com/lpt/a/6270">the original</a> on 27 December 2005<span class="reference-accessdate">. Retrieved <span class="nowrap">20 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=ONLamp&amp;rft.atitle=OpenBSD+3.8%3A+Hackers+of+the+Lost+RAID&amp;rft.date=2005-10-20&amp;rft.au=Federico+Biancuzzi&amp;rft_id=http%3A%2F%2Fwww.onlamp.com%2Flpt%2Fa%2F6270&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-174"><span class="mw-cite-backlink"><b><a href="#cite_ref-174">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/39.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F39.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-onlamp-39-175"><span class="mw-cite-backlink">^ <a href="#cite_ref-onlamp-39_175-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-onlamp-39_175-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFederico_Biancuzzi2006" class="citation web cs1">Federico Biancuzzi (27 April 2006). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20060512051701/http://www.onlamp.com/lpt/a/6557">"OpenBSD 3.9: Blob-Busters Interviewed"</a>. <i>ONLamp</i>. <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a>. Archived from <a rel="nofollow" class="external text" href="http://www.onlamp.com/lpt/a/6557">the original</a> on 12 May 2006<span class="reference-accessdate">. Retrieved <span class="nowrap">19 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=ONLamp&amp;rft.atitle=OpenBSD+3.9%3A+Blob-Busters+Interviewed&amp;rft.date=2006-04-27&amp;rft.au=Federico+Biancuzzi&amp;rft_id=http%3A%2F%2Fwww.onlamp.com%2Flpt%2Fa%2F6557&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-176"><span class="mw-cite-backlink"><b><a href="#cite_ref-176">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/40.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F40.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-onlamp-40-177"><span class="mw-cite-backlink"><b><a href="#cite_ref-onlamp-40_177-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFederico_Biancuzzi2006" class="citation web cs1">Federico Biancuzzi (26 October 2006). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20070310145538/http://www.oreillynet.com/lpt/a/6769">"OpenBSD 4.0: Pufferix's Adventures"</a>. <i>ONLamp</i>. <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a>. Archived from <a rel="nofollow" class="external text" href="http://www.oreillynet.com/lpt/a/6769">the original</a> on 10 March 2007<span class="reference-accessdate">. Retrieved <span class="nowrap">19 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=ONLamp&amp;rft.atitle=OpenBSD+4.0%3A+Pufferix%27s+Adventures&amp;rft.date=2006-10-26&amp;rft.au=Federico+Biancuzzi&amp;rft_id=http%3A%2F%2Fwww.oreillynet.com%2Flpt%2Fa%2F6769&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-178"><span class="mw-cite-backlink"><b><a href="#cite_ref-178">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/errata40.html#m_dup1errata40%C2%A0010">"Errata"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Errata&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2Ferrata40.html%23m_dup1errata40+010&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-179"><span class="mw-cite-backlink"><b><a href="#cite_ref-179">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/41.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F41.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-onlamp-41-180"><span class="mw-cite-backlink"><b><a href="#cite_ref-onlamp-41_180-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFederico_Biancuzzi2007" class="citation web cs1">Federico Biancuzzi (3 May 2007). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20080518094717/http://www.onlamp.com/lpt/a/7008">"OpenBSD 4.1: Puffy Strikes Again"</a>. <i>ONLamp</i>. <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a>. Archived from <a rel="nofollow" class="external text" href="http://www.onlamp.com/lpt/a/7008">the original</a> on 18 May 2008<span class="reference-accessdate">. Retrieved <span class="nowrap">19 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=ONLamp&amp;rft.atitle=OpenBSD+4.1%3A+Puffy+Strikes+Again&amp;rft.date=2007-05-03&amp;rft.au=Federico+Biancuzzi&amp;rft_id=http%3A%2F%2Fwww.onlamp.com%2Flpt%2Fa%2F7008&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-sensors-undeadly06-181"><span class="mw-cite-backlink"><b><a href="#cite_ref-sensors-undeadly06_181-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFConstantine_A._Murenin2006" class="citation web cs1">Constantine A. Murenin (30 December 2006). Marco Peereboom (ed.). <a rel="nofollow" class="external text" href="http://undeadly.org/cgi?action=article&amp;sid=20061230235005">"New two-level sensor API"</a>. <i><a href="/wiki/OpenBSD_Journal" title="OpenBSD Journal">OpenBSD Journal</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">4 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD+Journal&amp;rft.atitle=New+two-level+sensor+API&amp;rft.date=2006-12-30&amp;rft.au=Constantine+A.+Murenin&amp;rft_id=http%3A%2F%2Fundeadly.org%2Fcgi%3Faction%3Darticle%26sid%3D20061230235005&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-sensors-ieee07-182"><span class="mw-cite-backlink"><b><a href="#cite_ref-sensors-ieee07_182-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFConstantine_A._Murenin2007" class="citation conference cs1">Constantine A. Murenin (17 April 2007). "4.3. What we have proposed and implemented". <a rel="nofollow" class="external text" href="http://sensors.cnst.su/IEEE_ICNSC_2007"><i>Generalised Interfacing with Microprocessor System Hardware Monitors</i></a>. Proceedings of 2007 IEEE International Conference on Networking, Sensing and Control, 15–17 April 2007. London, United Kingdom: <a href="/wiki/Institute_of_Electrical_and_Electronics_Engineers" title="Institute of Electrical and Electronics Engineers">IEEE</a>. pp. 901–906. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1109%2FICNSC.2007.372901">10.1109/ICNSC.2007.372901</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1-4244-1076-7" title="Special:BookSources/978-1-4244-1076-7"><bdi>978-1-4244-1076-7</bdi></a>. IEEE ICNSC 2007, pp. 901–906.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=conference&amp;rft.atitle=4.3.+What+we+have+proposed+and+implemented&amp;rft.btitle=Generalised+Interfacing+with+Microprocessor+System+Hardware+Monitors&amp;rft.place=London%2C+United+Kingdom&amp;rft.pages=901-906&amp;rft.pub=IEEE&amp;rft.date=2007-04-17&amp;rft_id=info%3Adoi%2F10.1109%2FICNSC.2007.372901&amp;rft.isbn=978-1-4244-1076-7&amp;rft.au=Constantine+A.+Murenin&amp;rft_id=http%3A%2F%2Fsensors.cnst.su%2FIEEE_ICNSC_2007&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-183"><span class="mw-cite-backlink"><b><a href="#cite_ref-183">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/42.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F42.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-onlamp-42-184"><span class="mw-cite-backlink"><b><a href="#cite_ref-onlamp-42_184-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFederico_Biancuzzi2007" class="citation web cs1">Federico Biancuzzi (1 November 2007). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20111013021755/http://onlamp.com/lpt/a/7155">"Puffy's Marathon: What's New in OpenBSD 4.2"</a>. <i>ONLamp</i>. <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a>. Archived from <a rel="nofollow" class="external text" href="http://onlamp.com/lpt/a/7155">the original</a> on 13 October 2011<span class="reference-accessdate">. Retrieved <span class="nowrap">3 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=ONLamp&amp;rft.atitle=Puffy%27s+Marathon%3A+What%27s+New+in+OpenBSD+4.2&amp;rft.date=2007-11-01&amp;rft.au=Federico+Biancuzzi&amp;rft_id=http%3A%2F%2Fonlamp.com%2Flpt%2Fa%2F7155&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://undeadly.org/cgi?action=article&amp;sid=20071102080000">"Puffy's Marathon: What's New in OpenBSD 4.2 - ONLamp.com"</a>. <i>OpenBSD Journal</i>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD+Journal&amp;rft.atitle=Puffy%27s+Marathon%3A+What%27s+New+in+OpenBSD+4.2+-+ONLamp.com&amp;rft_id=http%3A%2F%2Fundeadly.org%2Fcgi%3Faction%3Darticle%26sid%3D20071102080000&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></li></ul> </span></li> <li id="cite_note-185"><span class="mw-cite-backlink"><b><a href="#cite_ref-185">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/43.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F43.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-onlamp-43-186"><span class="mw-cite-backlink"><b><a href="#cite_ref-onlamp-43_186-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFederico_Biancuzzi2008" class="citation web cs1">Federico Biancuzzi (29 April 2008). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20080506054059/http://www.onlamp.com/lpt/a/7290">"Puffy and the Cryptonauts: What's New in OpenBSD 4.3"</a>. <i>ONLamp</i>. <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a>. Archived from <a rel="nofollow" class="external text" href="http://www.onlamp.com/lpt/a/7290">the original</a> on 6 May 2008<span class="reference-accessdate">. Retrieved <span class="nowrap">20 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=ONLamp&amp;rft.atitle=Puffy+and+the+Cryptonauts%3A+What%27s+New+in+OpenBSD+4.3&amp;rft.date=2008-04-29&amp;rft.au=Federico+Biancuzzi&amp;rft_id=http%3A%2F%2Fwww.onlamp.com%2Flpt%2Fa%2F7290&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-187"><span class="mw-cite-backlink"><b><a href="#cite_ref-187">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/44.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F44.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-OpenBSD-PIE-188"><span class="mw-cite-backlink"><b><a href="#cite_ref-OpenBSD-PIE_188-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKurt_Miller2008" class="citation web cs1">Kurt Miller (2008). <a rel="nofollow" class="external text" href="https://www.openbsd.org/papers/nycbsdcon08-pie/">"OpenBSD's Position Independent Executable (PIE) Implementation"</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20110612150147/http://openbsd.org/papers/nycbsdcon08-pie/">Archived</a> from the original on 12 June 2011<span class="reference-accessdate">. Retrieved <span class="nowrap">22 July</span> 2011</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenBSD%27s+Position+Independent+Executable+%28PIE%29+Implementation&amp;rft.date=2008&amp;rft.au=Kurt+Miller&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2Fpapers%2Fnycbsdcon08-pie%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-onlamp-44-189"><span class="mw-cite-backlink">^ <a href="#cite_ref-onlamp-44_189-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-onlamp-44_189-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFederico_Biancuzzi2008" class="citation web cs1">Federico Biancuzzi (3 November 2008). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120524040127/http://broadcast.oreilly.com/2008/11/source-wars---return-of-the-pu.html">"Source Wars - Return of the Puffy: What's New in OpenBSD 4.4"</a>. <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a>. Archived from <a rel="nofollow" class="external text" href="http://broadcast.oreilly.com/2008/11/source-wars---return-of-the-pu.html">the original</a> on 24 May 2012<span class="reference-accessdate">. Retrieved <span class="nowrap">3 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Source+Wars+-+Return+of+the+Puffy%3A+What%27s+New+in+OpenBSD+4.4&amp;rft.pub=O%27Reilly+Media&amp;rft.date=2008-11-03&amp;rft.au=Federico+Biancuzzi&amp;rft_id=http%3A%2F%2Fbroadcast.oreilly.com%2F2008%2F11%2Fsource-wars---return-of-the-pu.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-190"><span class="mw-cite-backlink"><b><a href="#cite_ref-190">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/45.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F45.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-onlamp-45-191"><span class="mw-cite-backlink"><b><a href="#cite_ref-onlamp-45_191-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFederico_Biancuzzi2009" class="citation web cs1">Federico Biancuzzi (15 June 2009). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20090619235238/http://broadcast.oreilly.com/2009/06/openbsd-45.html">"PuffyTron recommends OpenBSD 4.5"</a>. <a href="/wiki/O%27Reilly_Media" title="O'Reilly Media">O'Reilly Media</a>. Archived from <a rel="nofollow" class="external text" href="http://broadcast.oreilly.com/2009/06/openbsd-45.html">the original</a> on 19 June 2009<span class="reference-accessdate">. Retrieved <span class="nowrap">19 March</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=PuffyTron+recommends+OpenBSD+4.5&amp;rft.pub=O%27Reilly+Media&amp;rft.date=2009-06-15&amp;rft.au=Federico+Biancuzzi&amp;rft_id=http%3A%2F%2Fbroadcast.oreilly.com%2F2009%2F06%2Fopenbsd-45.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-sensors-mmath-192"><span class="mw-cite-backlink">^ <a href="#cite_ref-sensors-mmath_192-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-sensors-mmath_192-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFConstantine_A._Murenin2010" class="citation thesis cs1">Constantine A. Murenin (21 May 2010). "6.2. Evolution of drivers; Chart VII. Number of drivers using the sensors framework from OpenBSD 3.4 to 4.6.". <a rel="nofollow" class="external text" href="http://cnst.su/MMathCS"><i>OpenBSD Hardware Sensors — Environmental Monitoring and Fan Control</i></a> (<a href="/wiki/Master_of_Mathematics#Canada" title="Master of Mathematics">MMath</a> thesis). <a href="/wiki/University_of_Waterloo" title="University of Waterloo">University of Waterloo</a>: UWSpace. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<a rel="nofollow" class="external text" href="https://hdl.handle.net/10012%2F5234">10012/5234</a>. Document ID: ab71498b6b1a60ff817b29d56997a418.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&amp;rft.title=OpenBSD+Hardware+Sensors+%E2%80%94+Environmental+Monitoring+and+Fan+Control.&amp;rft.degree=MMath&amp;rft.inst=UWSpace&amp;rft.date=2010-05-21&amp;rft_id=info%3Ahdl%2F10012%2F5234&amp;rft.au=Constantine+A.+Murenin&amp;rft_id=http%3A%2F%2Fcnst.su%2FMMathCS&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-193"><span class="mw-cite-backlink"><b><a href="#cite_ref-193">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/46.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F46.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-194"><span class="mw-cite-backlink"><b><a href="#cite_ref-194">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/47.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F47.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-195"><span class="mw-cite-backlink"><b><a href="#cite_ref-195">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/48.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F48.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-196"><span class="mw-cite-backlink"><b><a href="#cite_ref-196">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://marc.info/?l=openbsd-misc&amp;m=128397592926217&amp;w=2">"MARC"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=MARC&amp;rft_id=http%3A%2F%2Fmarc.info%2F%3Fl%3Dopenbsd-misc%26m%3D128397592926217%26w%3D2&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-197"><span class="mw-cite-backlink"><b><a href="#cite_ref-197">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/49.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F49.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-198"><span class="mw-cite-backlink"><b><a href="#cite_ref-198">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/50.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F50.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-199"><span class="mw-cite-backlink"><b><a href="#cite_ref-199">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/51.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F51.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-200"><span class="mw-cite-backlink"><b><a href="#cite_ref-200">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/52.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F52.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-201"><span class="mw-cite-backlink"><b><a href="#cite_ref-201">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/53.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F53.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-202"><span class="mw-cite-backlink"><b><a href="#cite_ref-202">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/54.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F54.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-203"><span class="mw-cite-backlink"><b><a href="#cite_ref-203">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/55.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F55.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-204"><span class="mw-cite-backlink"><b><a href="#cite_ref-204">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/56.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F56.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-205"><span class="mw-cite-backlink"><b><a href="#cite_ref-205">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/57.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F57.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-206"><span class="mw-cite-backlink"><b><a href="#cite_ref-206">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/58.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F58.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-207"><span class="mw-cite-backlink"><b><a href="#cite_ref-207">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://marc.info/?l=openbsd-announce&amp;m=144515087006176">"MARC"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=MARC&amp;rft_id=http%3A%2F%2Fmarc.info%2F%3Fl%3Dopenbsd-announce%26m%3D144515087006176&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-208"><span class="mw-cite-backlink"><b><a href="#cite_ref-208">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/59.html">"Release Notes"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">9 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Release+Notes&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F59.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-209"><span class="mw-cite-backlink"><b><a href="#cite_ref-209">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/60.html"><i>OpenBSD 6.0</i></a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-9881561-8-0" title="Special:BookSources/978-0-9881561-8-0"><bdi>978-0-9881561-8-0</bdi></a><span class="reference-accessdate">. Retrieved <span class="nowrap">24 July</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=OpenBSD+6.0&amp;rft.isbn=978-0-9881561-8-0&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F60.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span> <span class="cs1-visible-error citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_book" title="Template:Cite book">cite book</a>}}</code>: </span><span class="cs1-visible-error citation-comment"><code class="cs1-code">|website=</code> ignored (<a href="/wiki/Help:CS1_errors#periodical_ignored" title="Help:CS1 errors">help</a>)</span></span> </li> <li id="cite_note-210"><span class="mw-cite-backlink"><b><a href="#cite_ref-210">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/vax.html">"OpenBSD vax"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2 September</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+vax&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2Fvax.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-211"><span class="mw-cite-backlink"><b><a href="#cite_ref-211">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/sparc.html">"OpenBSD sparc"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2 September</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+sparc&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2Fsparc.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-212"><span class="mw-cite-backlink"><b><a href="#cite_ref-212">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/61.html">"OpenBSD 6.1"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">11 April</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+6.1&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F61.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-213"><span class="mw-cite-backlink"><b><a href="#cite_ref-213">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/62.html">"OpenBSD 6.2"</a>. <i>OpenBSD</i>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+6.2&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F62.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-214"><span class="mw-cite-backlink"><b><a href="#cite_ref-214">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://man.openbsd.org/unveil">"unveil(2)"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">19 October</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=unveil%282%29&amp;rft_id=https%3A%2F%2Fman.openbsd.org%2Funveil&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-215"><span class="mw-cite-backlink"><b><a href="#cite_ref-215">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/66.html">"OpenBSD 6.6"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">17 January</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+6.6&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F66.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-216"><span class="mw-cite-backlink"><b><a href="#cite_ref-216">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/67.html">"OpenBSD 6.7"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">21 May</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+6.7&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F67.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-217"><span class="mw-cite-backlink"><b><a href="#cite_ref-217">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/68.html">"OpenBSD 6.8"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">18 October</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+6.8&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F68.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-OpenBSD_FAQ-218"><span class="mw-cite-backlink"><b><a href="#cite_ref-OpenBSD_FAQ_218-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/faq/faq5.html#Flavors">"OpenBSD FAQ"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">5 May</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+FAQ&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2Ffaq%2Ffaq5.html%23Flavors&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-220"><span class="mw-cite-backlink"><b><a href="#cite_ref-220">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/69.html">"OpenBSD 6.9"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2 May</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+6.9&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F69.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-:0-221"><span class="mw-cite-backlink">^ <a href="#cite_ref-:0_221-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:0_221-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/70.html">"OpenBSD 7.0"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">15 October</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+7.0&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F70.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-222"><span class="mw-cite-backlink"><b><a href="#cite_ref-222">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/71.html">"OpenBSD 7.1"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">21 April</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+7.1&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F71.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-223"><span class="mw-cite-backlink"><b><a href="#cite_ref-223">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20220822025445/http://www.openbsd.org/loongson.html">"OpenBSD loongson"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.openbsd.org/loongson.html">the original</a> on 22 August 2022.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=OpenBSD+loongson&amp;rft_id=http%3A%2F%2Fwww.openbsd.org%2Floongson.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-224"><span class="mw-cite-backlink"><b><a href="#cite_ref-224">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/72.html">"OpenBSD 7.2"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">20 October</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+7.2&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F72.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-225"><span class="mw-cite-backlink"><b><a href="#cite_ref-225">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/73.html">"OpenBSD 7.3"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">10 April</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+7.3&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F73.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-226"><span class="mw-cite-backlink"><b><a href="#cite_ref-226">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/74.html">"OpenBSD 7.4"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">16 October</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+7.4&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F74.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-227"><span class="mw-cite-backlink"><b><a href="#cite_ref-227">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/75.html">"OpenBSD 7.5"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">9 April</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+7.5&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F75.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> <li id="cite_note-228"><span class="mw-cite-backlink"><b><a href="#cite_ref-228">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.openbsd.org/76.html">"OpenBSD 7.6"</a>. <i>OpenBSD</i><span class="reference-accessdate">. Retrieved <span class="nowrap">8 October</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=OpenBSD&amp;rft.atitle=OpenBSD+7.6&amp;rft_id=https%3A%2F%2Fwww.openbsd.org%2F76.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpenBSD" class="Z3988"></span></span> </li> </ol></div></div> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(17)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="External_links">External links</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=OpenBSD&amp;action=edit&amp;section=25" title="Edit section: External links" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section 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Saved in parser cache with key enwiki:pcache:18949571:|#|:idhash:canonical and timestamp 20241125094429 and revision id 1258592752. Rendering was triggered because: unknown --> </section></div> <!-- MobileFormatter took 0.073 seconds --><!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><noscript><img src="https://login.m.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&amp;mobile=1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=OpenBSD&amp;oldid=1258592752">https://en.wikipedia.org/w/index.php?title=OpenBSD&amp;oldid=1258592752</a>"</div></div> </div> <div class="post-content" id="page-secondary-actions"> </div> </main> <footer class="mw-footer minerva-footer" role="contentinfo"> <a class="last-modified-bar" href="/w/index.php?title=OpenBSD&amp;action=history"> <div class="post-content last-modified-bar__content"> <span class="minerva-icon minerva-icon-size-medium minerva-icon--modified-history"></span> <span class="last-modified-bar__text modified-enhancement" data-user-name="NagisaEf" data-user-gender="unknown" data-timestamp="1732116402"> <span>Last edited on 20 November 2024, at 15:26</span> </span> <span class="minerva-icon minerva-icon-size-small minerva-icon--expand"></span> </div> </a> <div class="post-content footer-content"> <div id='mw-data-after-content'> <div class="read-more-container"></div> </div> <div id="p-lang"> <h4>Languages</h4> <section> <ul id="p-variants" class="minerva-languages"></ul> <ul class="minerva-languages"><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A3%D9%88%D8%A8%D9%86_%D8%A8%D9%8A_%D8%A5%D8%B3_%D8%AF%D9%8A" title="أوبن بي إس دي – Arabic" lang="ar" hreflang="ar" data-title="أوبن بي إس دي" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Azerbaijani" lang="az" hreflang="az" data-title="OpenBSD" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%93%E0%A6%AA%E0%A7%87%E0%A6%A8_%E0%A6%AC%E0%A6%BF%E0%A6%8F%E0%A6%B8%E0%A6%A1%E0%A6%BF" title="ওপেন বিএসডি – Bangla" lang="bn" hreflang="bn" data-title="ওপেন বিএসডি" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Belarusian" lang="be" hreflang="be" data-title="OpenBSD" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="OpenBSD" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Bulgarian" lang="bg" hreflang="bg" data-title="OpenBSD" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Bosnian" lang="bs" hreflang="bs" data-title="OpenBSD" data-language-autonym="Bosanski" data-language-local-name="Bosnian" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Breton" lang="br" hreflang="br" data-title="OpenBSD" data-language-autonym="Brezhoneg" data-language-local-name="Breton" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Catalan" lang="ca" hreflang="ca" data-title="OpenBSD" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Czech" lang="cs" hreflang="cs" data-title="OpenBSD" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Danish" lang="da" hreflang="da" data-title="OpenBSD" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/OpenBSD" title="OpenBSD – German" lang="de" hreflang="de" data-title="OpenBSD" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Estonian" lang="et" hreflang="et" data-title="OpenBSD" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Greek" lang="el" hreflang="el" data-title="OpenBSD" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Spanish" lang="es" hreflang="es" data-title="OpenBSD" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Esperanto" lang="eo" hreflang="eo" data-title="OpenBSD" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Basque" lang="eu" hreflang="eu" data-title="OpenBSD" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa badge-Q17437798 badge-goodarticle mw-list-item" title="good article badge"><a href="https://fa.wikipedia.org/wiki/%D8%A7%D9%88%D9%BE%D9%86%E2%80%8C%D8%A8%DB%8C%E2%80%8C%D8%A7%D8%B3%E2%80%8C%D8%AF%DB%8C" title="اوپن‌بی‌اس‌دی – Persian" lang="fa" hreflang="fa" data-title="اوپن‌بی‌اس‌دی" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/OpenBSD" title="OpenBSD – French" lang="fr" hreflang="fr" data-title="OpenBSD" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Galician" lang="gl" hreflang="gl" data-title="OpenBSD" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Korean" lang="ko" hreflang="ko" data-title="OpenBSD" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Croatian" lang="hr" hreflang="hr" data-title="OpenBSD" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ilo mw-list-item"><a href="https://ilo.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Iloko" lang="ilo" hreflang="ilo" data-title="OpenBSD" data-language-autonym="Ilokano" data-language-local-name="Iloko" class="interlanguage-link-target"><span>Ilokano</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Indonesian" lang="id" hreflang="id" data-title="OpenBSD" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Icelandic" lang="is" hreflang="is" data-title="OpenBSD" data-language-autonym="Íslenska" data-language-local-name="Icelandic" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Italian" lang="it" hreflang="it" data-title="OpenBSD" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Hebrew" lang="he" hreflang="he" data-title="OpenBSD" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Latvian" lang="lv" hreflang="lv" data-title="OpenBSD" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Lithuanian" lang="lt" hreflang="lt" data-title="OpenBSD" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-jbo mw-list-item"><a href="https://jbo.wikipedia.org/wiki/la_by_sy_dy_poi_gubni" title="la by sy dy poi gubni – Lojban" lang="jbo" hreflang="jbo" data-title="la by sy dy poi gubni" data-language-autonym="La .lojban." data-language-local-name="Lojban" class="interlanguage-link-target"><span>La .lojban.</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Lombard" lang="lmo" hreflang="lmo" data-title="OpenBSD" data-language-autonym="Lombard" data-language-local-name="Lombard" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Hungarian" lang="hu" hreflang="hu" data-title="OpenBSD" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%93%E0%B4%AA%E0%B5%8D%E0%B4%AA%E0%B5%BA_%E0%B4%AC%E0%B4%BF._%E0%B4%8E%E0%B4%B8%E0%B5%8D._%E0%B4%A1%E0%B4%BF" title="ഓപ്പൺ ബി. എസ്. ഡി – Malayalam" lang="ml" hreflang="ml" data-title="ഓപ്പൺ ബി. എസ്. ഡി" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Malay" lang="ms" hreflang="ms" data-title="OpenBSD" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Dutch" lang="nl" hreflang="nl" data-title="OpenBSD" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%93%E0%A4%AA%E0%A4%A8_%E0%A4%AC%E0%A4%BF%E0%A4%8F%E0%A4%B8%E0%A4%A1%E0%A5%80" title="ओपन बिएसडी – Nepali" lang="ne" hreflang="ne" data-title="ओपन बिएसडी" data-language-autonym="नेपाली" data-language-local-name="Nepali" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Japanese" lang="ja" hreflang="ja" data-title="OpenBSD" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="OpenBSD" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Norwegian Nynorsk" lang="nn" hreflang="nn" data-title="OpenBSD" data-language-autonym="Norsk nynorsk" data-language-local-name="Norwegian Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Polish" lang="pl" hreflang="pl" data-title="OpenBSD" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Portuguese" lang="pt" hreflang="pt" data-title="OpenBSD" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Romanian" lang="ro" hreflang="ro" data-title="OpenBSD" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Quechua" lang="qu" hreflang="qu" data-title="OpenBSD" data-language-autonym="Runa Simi" data-language-local-name="Quechua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Russian" lang="ru" hreflang="ru" data-title="OpenBSD" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Scots" lang="sco" hreflang="sco" data-title="OpenBSD" data-language-autonym="Scots" data-language-local-name="Scots" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Sinhala" lang="si" hreflang="si" data-title="OpenBSD" data-language-autonym="සිංහල" data-language-local-name="Sinhala" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Simple English" lang="en-simple" hreflang="en-simple" data-title="OpenBSD" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Slovak" lang="sk" hreflang="sk" data-title="OpenBSD" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Slovenian" lang="sl" hreflang="sl" data-title="OpenBSD" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Serbian" lang="sr" hreflang="sr" data-title="OpenBSD" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Serbo-Croatian" lang="sh" hreflang="sh" data-title="OpenBSD" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croatian" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Finnish" lang="fi" hreflang="fi" data-title="OpenBSD" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Swedish" lang="sv" hreflang="sv" data-title="OpenBSD" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%82%E0%B8%AD%E0%B9%80%E0%B8%9E%E0%B8%99%E0%B8%9A%E0%B8%B5%E0%B9%80%E0%B8%AD%E0%B8%AA%E0%B8%94%E0%B8%B5" title="โอเพนบีเอสดี – Thai" lang="th" hreflang="th" data-title="โอเพนบีเอสดี" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Turkish" lang="tr" hreflang="tr" data-title="OpenBSD" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Ukrainian" lang="uk" hreflang="uk" data-title="OpenBSD" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Wu" lang="wuu" hreflang="wuu" data-title="OpenBSD" data-language-autonym="吴语" data-language-local-name="Wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/OpenBSD" title="OpenBSD – Chinese" lang="zh" hreflang="zh" data-title="OpenBSD" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li></ul> </section> </div> <div class="minerva-footer-logo"><img src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" alt="Wikipedia" width="120" height="18" style="width: 7.5em; height: 1.125em;"/> </div> <ul id="footer-info" class="footer-info hlist hlist-separated"> <li id="footer-info-lastmod"> This page was last edited on 20 November 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