<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="X-UA-Compatible" content="IE=Edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>.k5identity — MIT Kerberos Documentation</title> <link rel="stylesheet" href="../../_static/agogo.css" type="text/css" /> <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" /> <link rel="stylesheet" type="text/css" href="../../_static/kerb.css" /> <script type="text/javascript" id="documentation_options" data-url_root="../../" src="../../_static/documentation_options.js"></script> <script type="text/javascript" src="../../_static/jquery.js"></script> <script type="text/javascript" src="../../_static/underscore.js"></script> <script type="text/javascript" src="../../_static/doctools.js"></script> <script type="text/javascript" src="../../_static/language_data.js"></script> <link rel="author" title="About these documents" href="../../about.html" /> <link rel="index" title="Index" href="../../genindex.html" /> <link rel="search" title="Search" href="../../search.html" /> <link rel="copyright" title="Copyright" href="../../copyright.html" /> <link rel="next" title="User commands" href="../user_commands/index.html" /> <link rel="prev" title=".k5login" href="k5login.html" /> </head><body> <div class="header-wrapper"> <div class="header"> <h1><a href="../../index.html">MIT Kerberos Documentation</a></h1> <div class="rel"> <a href="../../index.html" title="Full Table of Contents" accesskey="C">Contents</a> | <a href="k5login.html" title=".k5login" accesskey="P">previous</a> | <a href="../user_commands/index.html" title="User commands" accesskey="N">next</a> | <a href="../../genindex.html" title="General Index" accesskey="I">index</a> | <a href="../../search.html" title="Enter search criteria" accesskey="S">Search</a> | <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__.k5identity">feedback</a> </div> </div> </div> <div class="content-wrapper"> <div class="content"> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <div class="section" id="k5identity"> <span id="k5identity-5"></span><h1>.k5identity<a class="headerlink" href="#k5identity" title="Permalink to this headline">¶</a></h1> <div class="section" id="description"> <h2>DESCRIPTION<a class="headerlink" href="#description" title="Permalink to this headline">¶</a></h2> <p>The .k5identity file, which resides in a user’s home directory, contains a list of rules for selecting a client principals based on the server being accessed. These rules are used to choose a credential cache within the cache collection when possible.</p> <p>Blank lines and lines beginning with <code class="docutils literal notranslate"><span class="pre">#</span></code> are ignored. Each line has the form:</p> <blockquote> <div><em>principal</em> <em>field</em>=<em>value</em> …</div></blockquote> <p>If the server principal meets all of the field constraints, then principal is chosen as the client principal. The following fields are recognized:</p> <dl class="docutils"> <dt><strong>realm</strong></dt> <dd>If the realm of the server principal is known, it is matched against <em>value</em>, which may be a pattern using shell wildcards. For host-based server principals, the realm will generally only be known if there is a <a class="reference internal" href="../../admin/conf_files/krb5_conf.html#domain-realm"><span class="std std-ref">[domain_realm]</span></a> section in <a class="reference internal" href="../../admin/conf_files/krb5_conf.html#krb5-conf-5"><span class="std std-ref">krb5.conf</span></a> with a mapping for the hostname.</dd> <dt><strong>service</strong></dt> <dd>If the server principal is a host-based principal, its service component is matched against <em>value</em>, which may be a pattern using shell wildcards.</dd> <dt><strong>host</strong></dt> <dd><p class="first">If the server principal is a host-based principal, its hostname component is converted to lower case and matched against <em>value</em>, which may be a pattern using shell wildcards.</p> <p class="last">If the server principal matches the constraints of multiple lines in the .k5identity file, the principal from the first matching line is used. If no line matches, credentials will be selected some other way, such as the realm heuristic or the current primary cache.</p> </dd> </dl> </div> <div class="section" id="example"> <h2>EXAMPLE<a class="headerlink" href="#example" title="Permalink to this headline">¶</a></h2> <p>The following example .k5identity file selects the client principal <code class="docutils literal notranslate"><span class="pre">alice@KRBTEST.COM</span></code> if the server principal is within that realm, the principal <code class="docutils literal notranslate"><span class="pre">alice/root@EXAMPLE.COM</span></code> if the server host is within a servers subdomain, and the principal <code class="docutils literal notranslate"><span class="pre">alice/mail@EXAMPLE.COM</span></code> when accessing the IMAP service on <code class="docutils literal notranslate"><span class="pre">mail.example.com</span></code>:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">alice</span><span class="nd">@KRBTEST</span><span class="o">.</span><span class="n">COM</span> <span class="n">realm</span><span class="o">=</span><span class="n">KRBTEST</span><span class="o">.</span><span class="n">COM</span> <span class="n">alice</span><span class="o">/</span><span class="n">root</span><span class="nd">@EXAMPLE</span><span class="o">.</span><span class="n">COM</span> <span class="n">host</span><span class="o">=*.</span><span class="n">servers</span><span class="o">.</span><span class="n">example</span><span class="o">.</span><span class="n">com</span> <span class="n">alice</span><span class="o">/</span><span class="n">mail</span><span class="nd">@EXAMPLE</span><span class="o">.</span><span class="n">COM</span> <span class="n">host</span><span class="o">=</span><span class="n">mail</span><span class="o">.</span><span class="n">example</span><span class="o">.</span><span class="n">com</span> <span class="n">service</span><span class="o">=</span><span class="n">imap</span> </pre></div> </div> </div> <div class="section" id="see-also"> <h2>SEE ALSO<a class="headerlink" href="#see-also" title="Permalink to this headline">¶</a></h2> <p>kerberos(1), <a class="reference internal" href="../../admin/conf_files/krb5_conf.html#krb5-conf-5"><span class="std std-ref">krb5.conf</span></a></p> </div> </div> </div> </div> </div> </div> <div class="sidebar"> <h2>On this page</h2> <ul> <li><a class="reference internal" href="#">.k5identity</a><ul> <li><a class="reference internal" href="#description">DESCRIPTION</a></li> <li><a class="reference internal" href="#example">EXAMPLE</a></li> <li><a class="reference internal" href="#see-also">SEE ALSO</a></li> </ul> </li> </ul> <br/> <h2>Table of contents</h2> <ul class="current"> <li class="toctree-l1 current"><a class="reference internal" href="../index.html">For users</a><ul class="current"> <li class="toctree-l2"><a class="reference internal" href="../pwd_mgmt.html">Password management</a></li> <li class="toctree-l2"><a class="reference internal" href="../tkt_mgmt.html">Ticket management</a></li> <li class="toctree-l2 current"><a class="reference internal" href="index.html">User config files</a><ul class="current"> <li class="toctree-l3"><a class="reference internal" href="kerberos.html">kerberos</a></li> <li class="toctree-l3"><a class="reference internal" href="k5login.html">.k5login</a></li> <li class="toctree-l3 current"><a class="current reference internal" href="#">.k5identity</a></li> </ul> </li> <li class="toctree-l2"><a class="reference internal" href="../user_commands/index.html">User commands</a></li> </ul> </li> <li class="toctree-l1"><a class="reference internal" href="../../admin/index.html">For administrators</a></li> <li class="toctree-l1"><a class="reference internal" href="../../appdev/index.html">For application developers</a></li> <li class="toctree-l1"><a class="reference internal" href="../../plugindev/index.html">For plugin module developers</a></li> <li class="toctree-l1"><a class="reference internal" href="../../build/index.html">Building Kerberos V5</a></li> <li class="toctree-l1"><a class="reference internal" href="../../basic/index.html">Kerberos V5 concepts</a></li> <li class="toctree-l1"><a class="reference internal" href="../../formats/index.html">Protocols and file formats</a></li> <li class="toctree-l1"><a class="reference internal" href="../../mitK5features.html">MIT Kerberos features</a></li> <li class="toctree-l1"><a class="reference internal" href="../../build_this.html">How to build this documentation from the source</a></li> <li class="toctree-l1"><a class="reference internal" href="../../about.html">Contributing to the MIT Kerberos Documentation</a></li> <li class="toctree-l1"><a class="reference internal" href="../../resources.html">Resources</a></li> </ul> <br/> <h4><a href="../../index.html">Full Table of Contents</a></h4> <h4>Search</h4> <form class="search" action="../../search.html" method="get"> <input type="text" name="q" size="18" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> <div class="clearer"></div> </div> </div> <div class="footer-wrapper"> <div class="footer" > <div class="right" ><i>Release: 1.17</i><br /> © <a href="../../copyright.html">Copyright</a> 1985-2019, MIT. </div> <div class="left"> <a href="../../index.html" title="Full Table of Contents" >Contents</a> | <a href="k5login.html" title=".k5login" >previous</a> | <a href="../user_commands/index.html" title="User commands" >next</a> | <a href="../../genindex.html" title="General Index" >index</a> | <a href="../../search.html" title="Enter search criteria" >Search</a> | <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__.k5identity">feedback</a> </div> </div> </div> </body> </html>