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<div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Tools</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" 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class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fwikitech.wikimedia.org%2Fwiki%2FBastion"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fwikitech.wikimedia.org%2Fwiki%2FBastion"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Print/export </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Special:Book&bookcmd=book_creator&referer=Bastion"><span>Create a book</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=Bastion&action=show-download-screen"><span>Download as PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Bastion&printable=yes" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikitech</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><p>A <b>bastion</b> is the main host on any given network for external users to log into. From the bastion, system administrators access other hosts on the same internal subnets. </p><p>While a bastion may not be the only host on a network with a public IP, it tends to be the only one with SSH enabled. Other public nodes are typically frontend web servers. </p><p>To verify fingerprints, refer to <a href="/wiki/Help:SSH_Fingerprints" title="Help:SSH Fingerprints">Help:SSH Fingerprints</a>. </p> <ul><li><code>bast1003.wikimedia.org</code> in the <a href="/wiki/Eqiad_data_center" title="Eqiad data center">eqiad data center</a> in Virginia, United States</li> <li><code>bast2003.wikimedia.org</code> in the <a href="/wiki/Codfw_data_center" title="Codfw data center">codfw data center</a> in Texas, United States</li> <li><code>bast3007.wikimedia.org</code> in the <a href="/wiki/Esams_data_center" title="Esams data center">esams data center</a> in Amsterdam, The Netherlands</li> <li><code>bast4005.wikimedia.org</code> in the <a href="/wiki/Ulsfo_data_center" title="Ulsfo data center">ulsfo data center</a> in San Francisco, United States</li> <li><code>bast5004.wikimedia.org</code> in the <a href="/wiki/Eqsin_data_center" title="Eqsin data center">eqsin data center</a> in Singapore</li> <li><code>bast6003.wikimedia.org</code> in the <a href="/wiki/Drmrs_data_center" title="Drmrs data center">drmrs data center</a> in Marseille, France</li> <li><code>bast7001.wikimedia.org</code> in the <a href="/wiki/Magru_data_center" title="Magru data center">magru data center</a> in São Paulo, Brazil</li></ul> <style data-mw-deduplicate="TemplateStyles:r2199629">.mw-parser-output .tpl-clustermap-dc{position:absolute;width:10px;height:10px;border-radius:50%;text-align:center;background:#a2a9b1}.mw-parser-output .tpl-clustermap-dc .mw-selflink::before{background:#a2a9b1}.mw-parser-output .tpl-clustermap-dc--eqiad{background:hsl(200,100%,45%);box-shadow:0px 0px 0px 20px hsla(200,100%,75%,0.4),0px 0px 0px 30px hsla(200,100%,75%,0.2),0px 0px 0px 40px hsla(200,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--eqiad .mw-selflink::before{background:hsl(200,100%,45%);box-shadow:0px 0px 0px 25px hsla(200,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--codfw{background:hsl(120,100%,35%);box-shadow:0px 0px 0px 20px hsla(120,100%,75%,0.4),0px 0px 0px 30px hsla(120,100%,75%,0.2),0px 0px 0px 40px hsla(120,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--codfw .mw-selflink::before{background:hsl(120,100%,35%);box-shadow:0px 0px 0px 25px hsla(120,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--esams{z-index:1;background:hsl(23,100%,45%);box-shadow:0px 0px 0px 20px hsla(23,100%,75%,0.4),0px 0px 0px 30px hsla(23,100%,75%,0.2),0px 0px 0px 40px hsla(23,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--esams .mw-selflink::before{background:hsl(23,100%,45%);box-shadow:0px 0px 0px 25px hsla(23,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--ulsfo{background:hsl(50,100%,45%);box-shadow:0px 0px 0px 10px hsla(50,100%,75%,0.4),0px 0px 0px 20px hsla(50,100%,75%,0.3),0px 0px 0px 30px hsla(50,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--ulsfo .mw-selflink::before{background:hsl(50,100%,45%);box-shadow:0px 0px 0px 25px hsla(50,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--eqsin{background:hsl(250,100%,35%);box-shadow:0px 0px 0px 20px hsla(250,100%,75%,0.4),0px 0px 0px 30px hsla(250,100%,75%,0.2),0px 0px 0px 40px hsla(250,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--eqsin .mw-selflink::before{background:hsl(250,100%,35%);box-shadow:0px 0px 0px 25px hsla(250,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--drmrs{background:hsl(352,100%,45%);box-shadow:0px 0px 0px 20px hsla(352,100%,75%,0.4),0px 0px 0px 30px hsla(352,100%,75%,0.2),0px 0px 0px 40px hsla(352,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--drmrs .mw-selflink::before{background:hsl(352,100%,35%);box-shadow:0px 0px 0px 25px hsla(352,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--magru{background:hsl(275,100%,45%);box-shadow:0px 0px 0px 20px hsla(275,100%,75%,0.4),0px 0px 0px 30px hsla(275,100%,75%,0.2),0px 0px 0px 40px hsla(275,100%,75%,0.2)}.mw-parser-output .tpl-clustermap-dc--magru .mw-selflink::before{background:hsl(275,100%,45%);box-shadow:0px 0px 0px 25px hsla(275,100%,75%,0.2)}.mw-parser-output .tpl-clustermap{position:relative}.mw-parser-output .tpl-clustermap-label{position:absolute;text-decoration:inherit;text-shadow:-1px -1px 5px #fff,1px -1px 5px #fff,-1px 1px 5px #fff,1px 1px 5px #fff}.mw-parser-output .tpl-clustermap-label--top{bottom:100%}.mw-parser-output .tpl-clustermap-label--bottom{top:100%}.mw-parser-output .tpl-clustermap-label--left{right:100%}.mw-parser-output .tpl-clustermap-label--right{left:100%}.mw-parser-output .tpl-clustermap-info{position:absolute;bottom:0;right:0}.mw-parser-output .tpl-clustermap--minimap .tpl-clustermap-dc{box-shadow:none;background:none;border:1px solid #54595d;margin-left:-5px;margin-top:-5px}.mw-parser-output .tpl-clustermap--minimap .tpl-clustermap-dc .mw-selflink::before{content:"";display:inline-block;width:12px;height:12px;position:absolute;border-radius:100%;top:-1px;left:-1px}.mw-parser-output .tpl-clustermap--minimap .tpl-clustermap-label{font-weight:normal;line-height:1;font-size:12px;text-shadow:-2px -2px 2px var(--color-inverted,#fff),0px -2px 2px var(--color-inverted,#fff),2px -2px 2px var(--color-inverted,#fff),0px -2px 2px var(--color-inverted,#fff),0px 2px 2px var(--color-inverted,#fff),2px -2px 2px var(--color-inverted,#fff),2px 0px 2px var(--color-inverted,#fff),2px 2px 2px var(--color-inverted,#fff)}.mw-parser-output .tpl-clustermap--minimap .mw-selflink .tpl-clustermap-label{font-weight:bold}</style> <div style="display: inline-block; text-align: center; vertical-align: top; margin: 1em 0;"><p>Map of <a class="mw-selflink selflink">bastion</a> hosts</p><div class="tpl-clustermap"><span class="skin-invert" typeof="mw:File"><span title="A map of the world showing where Wikimedia Foundation data centers are located."><img alt="A map of the world showing where Wikimedia Foundation data centers are located." src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Simplified_blank_world_map_without_Antartica_%28no_borders%29.svg/700px-Simplified_blank_world_map_without_Antartica_%28no_borders%29.svg.png" decoding="async" width="700" height="324" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Simplified_blank_world_map_without_Antartica_%28no_borders%29.svg/1050px-Simplified_blank_world_map_without_Antartica_%28no_borders%29.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ac/Simplified_blank_world_map_without_Antartica_%28no_borders%29.svg/1400px-Simplified_blank_world_map_without_Antartica_%28no_borders%29.svg.png 2x" data-file-width="1603" data-file-height="742"/></span></span><div class="tpl-clustermap-dc tpl-clustermap-dc--codfw" style="top: 32.7%; left: 12.8%;"><a href="/wiki/Codfw_data_center" title="Codfw data center"><strong title="Carrollton, Texas, United States" class="tpl-clustermap-label tpl-clustermap-label--bottom tpl-clustermap-label--right">codfw</strong></a></div> <div class="tpl-clustermap-dc tpl-clustermap-dc--eqiad" style="top: 27.5%; left: 18.0%;"><a href="/wiki/Eqiad_data_center" title="Eqiad data center"><strong title="Ashburn, Virginia, United States" class="tpl-clustermap-label tpl-clustermap-label--top tpl-clustermap-label--right">eqiad</strong></a></div> <div class="tpl-clustermap-dc tpl-clustermap-dc--esams" style="top: 17.2%; left: 41.8%;"><a href="/wiki/Esams_data_center" title="Esams data center"><strong title="Amsterdam, The Netherlands" class="tpl-clustermap-label tpl-clustermap-label--top tpl-clustermap-label--right">esams</strong></a></div> <div class="tpl-clustermap-dc tpl-clustermap-dc--ulsfo" style="top: 28.1%; left: 5.8%;"><a href="/wiki/Ulsfo_data_center" title="Ulsfo data center"><strong title="San Francisco, California, United States" class="tpl-clustermap-label tpl-clustermap-label--bottom tpl-clustermap-label--left">ulsfo</strong></a></div> <div class="tpl-clustermap-dc tpl-clustermap-dc--eqsin" style="top: 53.7%; left: 71.8%;"><a href="/wiki/Eqsin_data_center" title="Eqsin data center"><strong title="Singapore" class="tpl-clustermap-label tpl-clustermap-label--bottom tpl-clustermap-label--right">eqsin</strong></a></div> <div class="tpl-clustermap-dc tpl-clustermap-dc--drmrs" style="top: 26.1%; left: 42.4%;"><a href="/wiki/Drmrs_data_center" title="Drmrs data center"><strong title="Marseille, France" class="tpl-clustermap-label tpl-clustermap-label--bottom tpl-clustermap-label--right">drmrs</strong></a></div> <div class="tpl-clustermap-dc tpl-clustermap-dc--magru" style="top: 72.4%; left: 26.2%;"><a href="/wiki/Magru_data_center" title="Magru data center"><strong title="São Paulo, Brazil" class="tpl-clustermap-label tpl-clustermap-label--bottom tpl-clustermap-label--right">magru</strong></a></div> <span class="noviewer tpl-clustermap-info" typeof="mw:File"><a href="/wiki/Template:ClusterMap" title="Data center diagram by Timo Tijhof (CC-BY 3.0), based on World map by Skimel (Public domain)."><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/23/Breezeicons-status-16-dialog-information.svg/16px-Breezeicons-status-16-dialog-information.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/23/Breezeicons-status-16-dialog-information.svg/24px-Breezeicons-status-16-dialog-information.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/23/Breezeicons-status-16-dialog-information.svg/32px-Breezeicons-status-16-dialog-information.svg.png 2x" data-file-width="512" data-file-height="512"/></a></span></div></div> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="See_also" data-mw-thread-id="h-See_also"><span data-mw-comment-start="" id="h-See_also"></span>See also<span data-mw-comment-end="h-See_also"></span></h2></div> <ul><li><b><a href="/wiki/Production_shell_access#SSH_configuration" class="mw-redirect" title="Production shell access">Production shell access#SSH configuration</a></b></li> <li><a href="/wiki/Category:Server_usage:Bastion" title="Category:Server usage:Bastion">List of Bastion hosts in Wikimedia clusters</a></li> <li><a href="https://en.wikipedia.org/wiki/Bastion_host" class="extiw" title="en:Bastion host">Read about "Bastion host" on Wikipedia</a></li></ul> <ul><li>experimental Bash script for local users to detect the correct bastion and auto-fix config: <a class="external free" href="https://people.wikimedia.org/~dzahn/bastion.sh.txt">https://people.wikimedia.org/~dzahn/bastion.sh.txt</a></li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" 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