NLnet Labs - NSD

<!DOCTYPE html> <html lang="en"> <head> <title>NLnet Labs - NSD - About </title> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1">  <link rel="shortcut icon" href="/extra/favicons/favicon.ico" /> <link rel="icon" type="image/x-icon" href="/extra/favicons/favicon.ico" /> <link rel="apple-touch-icon" sizes="180x180" href="/extra/favicons/Mark-NLnet-Labs-180px.png" /> <link rel="icon" type="image/png" href="/extra/favicons/favicon-196x196.png" sizes="196x196" />  <meta name="description" content="The NLnet Labs Name Server Daemon (NSD) is an authoritative DNS name server. It has been developed for operations in environments where speed, reliability, stability and security are of high importance. NSD has a pure design philosophy that prioritises raw performance. 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<section id="content" class="col main-content"> <div class="m-0 p-0 mb-3"> <h1><small class="font-weight-bold">NSD</small></h1> <ul class="list-inline"> <li class="list-inline-item"> About </li> <li class="list-inline-item"> <a href="/projects/nsd/download/">Download</a> </li> <li class="list-inline-item"> <a href="/projects/nsd/support/">Support</a> </li> <li class="list-inline-item"> <a href="/projects/nsd/rfc-compliance/">RFC Compliance</a> </li> <li class="list-inline-item"> <a href="/projects/nsd/security-advisories/">Security Advisories</a> </li> </ul> <div class="border border-black page-title-underbar"></div> </div> <p class="lead">The NLnet Labs Name Server Daemon (NSD) is an authoritative DNS name server. It has been developed for operations in environments where speed, reliability, stability and security are of high importance.</p> <p>NSD has a pure design philosophy that prioritises raw performance. This means that if you serve hundreds of thousands or even millions of queries per second, NSD is one of the leading implementations in the world. The nameserver also features <a class="reference external" href="/projects/simdzone/about/">simdzone</a>, a high-performance DNS presentation format parser that utilises instructions available in modern processors to substantially enhance the throughput of operations such as zone loading.</p> <p>These features make NSD ideally suited for Top Level Domain implementations, DNS Root servers and anyone in need of a fast and optimised authoritative name server. Currently, three DNS root servers and many top-level domain registries use NSD as part of their server implementation. NSD has not implemented recursive caching by design. If you need a validating, recursive, caching resolver then NLnet Labs has <a class="reference external" href="/projects/unbound/about/">Unbound</a> available.</p> <p>NSD is distributed free of charge in open source form under the BSD license. For most platforms, <a class="reference external" href="https://repology.org/metapackage/nsd/versions">packages</a> are available. The software is covered by a <a class="reference external" href="/projects/nsd/security-advisories/">security patch policy</a>. If you run NSD in a mission critical environment and you would like support backed by a Service Level Agreement directly from the developers at NLnet Labs, please visit our <a class="reference external" href="/services/contracts/">Support Contracts</a> page for more information.</p> </section> <aside class="sidepanel"> <div class="sticky"> <div class="section" id="logo"> <p><img alt="NSD logo" class="visible-on-sidebar" src="https://nlnetlabs.nl/static/logos/NSD/NSD_FC_Shaded_cropped.svg" style="height: 60px;"></p> </div> <div class="section" id="most-recent-version"> <h2>Most Recent Version</h2> <p><a href="/downloads/nsd/nsd-4.10.1.tar.gz">NSD 4.10.1</a> (.tar.gz)</p> </div> <div class="section" id="change-log"> <h2>Change Log</h2> <p><a href="https://github.com/NLnetLabs/nsd/blob/NSD_4_10_1_REL/doc/ChangeLog">NSD 4.10.1</a></p> </div> <div class="section" id="documentation"> <h2>Documentation</h2> <p><a href="https://nsd.docs.nlnetlabs.nl/">User Guide</a><br> <a href="/documentation/nsd/">Manual pages</a></p> </div> <div class="section" id="source-code"> <h2>Source Code</h2> <p><a href="https://github.com/NLnetLabs/nsd">Browse GitHub Repository</a></p> </div> <div class="section" id="mailing-list"> <h2>Mailing List</h2> <p><a href="https://lists.nlnetlabs.nl/mailman/listinfo/nsd-users">nsd-users</a></p> </div> <div class="section" id="bug-reporting"> <h2>Bug Reporting</h2> <p><a href="https://github.com/NLnetLabs/nsd/issues">GitHub issues</a></p> </div> <div class="section" id="sponsor"> <iframe src="https://github.com/sponsors/NLnetLabs/button" title="Sponsor NLnetLabs" height="35" width="116" style="border: 0;"></iframe> </div> </div> </aside> </div> </div> <footer id="footer" class="mt-auto pt-3 pb-1 bg-black text-white border-top border-primary"> <div class="container"> <div class="row"> <div class="col-12 col-sm-10 mb-3"> <div class="container-fluid"> <div class="row"> <div class="col sr-only"><h2>Further navigation</h2></div> <div class="d-md-none col-12"> <nav> <ul class="list-inline"> <li class="list-inline-item"><a href="/news/" >News</a> </li> <li class="list-inline-item"><a href="/people/" >People</a> </li> <li class="list-inline-item"><a href="/careers/culture/" >Careers</a> </li> <li class="list-inline-item"><a href="/organisation/" >Our Organisation</a> </li> <li class="list-inline-item"><a href="/conduct/" >Code of Conduct</a> </li> <li class="list-inline-item"><a href="/privacy-and-cookie-statement/" >Privacy Statement</a> </li> <li class="list-inline-item"><a href="/security-report/" >Submit Security Report</a> </li> </ul> </nav> </div> <div class="d-none d-md-block col-12 col-md-3"> <nav> <ul class="list-unstyled"> <li><a href="/news/" >News</a></li> <li><a href="/people/" >People</a></li> <li><a href="/careers/culture/" >Careers</a></li> <li><a href="/organisation/" >Our Organisation</a></li> <li><a href="/conduct/" >Code of Conduct</a></li> <li><a href="/privacy-and-cookie-statement/" >Privacy Statement</a></li> <li><a href="/security-report/" >Submit Security Report</a></li> </ul> </nav> </div> <div class="col-12 col-md-3 mb-3 pt-1"> <a title="masdoton" rel="me" href="https://fosstodon.org/@nlnetlabs" aria-label="mastodon"><span class="fab fa-mastodon fa-2x"></span></a> <a title="github" href="https://github.com/NLnetLabs" aria-label="github"><span class="fab fa-github fa-2x"></span></a> <a title="docker" href="https://hub.docker.com/u/nlnetlabs/" aria-label="docker"><span class="fab fa-docker fa-2x"></span></a> <a title="linkedin" href="https://www.linkedin.com/company/92855/" aria-label="linkedin"><span class="fab fa-linkedin fa-2x"></span></a> </div> <div class="col-12 col-md-6"> <address> Stichting NLnet Labs <br /> Science Park 400, 1098 XH Amsterdam, The Netherlands </address> <p> General contact address: <a href="mailto:labs@nlnetlabs.nl">labs@nlnetlabs.nl</a> <br /> For product support please use our <a href="/support/mailing-lists/">mailing lists.</a> </p> <p> NLnet Labs is a non-profit Public Benefit Organisation (<i>Algemeen Nut Beogende Instelling</i> or ANBI). </p> </div> <div class="w-100"></div> <div class="col offset-md-6"> © 2024 Stichting NLnet Labs </div> </div> </div> </div> <div class="to-the-top"> <a href="#"><img src="/static/icons/go_to_the_top.png" height="60" alt="go to the top"></a> </div> </div> </div> </footer> <script src="/theme/js/jquery-3.2.1.min.js"></script> <script src="/theme/js/bootstrap.min.js"></script> <script src="/static/js/analytics.js"></script> </body> </html>

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