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<!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="Content-Type" content="text/html; charset=utf-8" /> <title>MIT Kerberos defaults — 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" href="_static/kerb.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '', VERSION: '1.15.1', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </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> <link rel="author" title="About these documents" href="about.html" /> <link rel="copyright" title="Copyright" 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class="content-wrapper"> <div class="content"> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body"> <div class="section" id="mit-kerberos-defaults"> <span id="mitk5defaults"></span><h1>MIT Kerberos defaults<a class="headerlink" href="#mit-kerberos-defaults" title="Permalink to this headline">¶</a></h1> <div class="section" id="general-defaults"> <h2>General defaults<a class="headerlink" href="#general-defaults" title="Permalink to this headline">¶</a></h2> <table border="1" class="docutils"> <colgroup> <col width="45%" /> <col width="31%" /> <col width="24%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">Description</th> <th class="head">Default</th> <th class="head">Environment</th> </tr> </thead> <tbody valign="top"> <tr class="row-even"><td><a class="reference internal" href="basic/keytab_def.html#keytab-definition"><em>keytab</em></a> file</td> <td><tt class="docutils literal"><span class="pre">FILE:/etc/krb5.keytab</span></tt></td> <td><strong>KRB5_KTNAME</strong></td> </tr> <tr class="row-odd"><td>Client <a class="reference internal" href="basic/keytab_def.html#keytab-definition"><em>keytab</em></a> file</td> <td><tt class="docutils literal"><span class="pre">FILE:/var/kerberos/krb5/user/%{euid}/client.keytab</span></tt></td> <td><strong>KRB5_CLIENT_KTNAME</strong></td> </tr> <tr class="row-even"><td>Kerberos config file <a class="reference internal" href="admin/conf_files/krb5_conf.html#krb5-conf-5"><em>krb5.conf</em></a></td> <td><tt class="docutils literal"><span class="pre">/etc/krb5.conf</span></tt><tt class="docutils literal"><span class="pre">:</span></tt><tt class="docutils literal"><span class="pre">/etc</span></tt><tt class="docutils literal"><span class="pre">/krb5.conf</span></tt></td> <td><strong>KRB5_CONFIG</strong></td> </tr> <tr class="row-odd"><td>KDC config file <a class="reference internal" href="admin/conf_files/kdc_conf.html#kdc-conf-5"><em>kdc.conf</em></a></td> <td><tt class="docutils literal"><span class="pre">/var/kerberos</span></tt><tt class="docutils literal"><span class="pre">/krb5kdc</span></tt><tt class="docutils literal"><span class="pre">/kdc.conf</span></tt></td> <td><strong>KRB5_KDC_PROFILE</strong></td> </tr> <tr class="row-even"><td>KDC database path (DB2)</td> <td><tt class="docutils literal"><span class="pre">/var/kerberos</span></tt><tt class="docutils literal"><span class="pre">/krb5kdc</span></tt><tt class="docutils literal"><span class="pre">/principal</span></tt></td> <td> </td> </tr> <tr class="row-odd"><td>Master key <a class="reference internal" href="basic/stash_file_def.html#stash-definition"><em>stash file</em></a></td> <td><tt class="docutils literal"><span class="pre">/var/kerberos</span></tt><tt class="docutils literal"><span class="pre">/krb5kdc</span></tt><tt class="docutils literal"><span class="pre">/.k5.</span></tt><em>realm</em></td> <td> </td> </tr> <tr class="row-even"><td>Admin server ACL file <a class="reference internal" href="admin/conf_files/kadm5_acl.html#kadm5-acl-5"><em>kadm5.acl</em></a></td> <td><tt class="docutils literal"><span class="pre">/var/kerberos</span></tt><tt class="docutils literal"><span class="pre">/krb5kdc</span></tt><tt class="docutils literal"><span class="pre">/kadm5.acl</span></tt></td> <td> </td> </tr> <tr class="row-odd"><td>OTP socket directory</td> <td><tt class="docutils literal"><span class="pre">/var/run</span></tt><tt class="docutils literal"><span class="pre">/krb5kdc</span></tt></td> <td> </td> </tr> <tr class="row-even"><td>Plugin base directory</td> <td><tt class="docutils literal"><span class="pre">/usr/lib64</span></tt><tt class="docutils literal"><span class="pre">/krb5/plugins</span></tt></td> <td> </td> </tr> <tr class="row-odd"><td><a class="reference internal" href="basic/rcache_def.html#rcache-definition"><em>replay cache</em></a> directory</td> <td><tt class="docutils literal"><span class="pre">/var/tmp</span></tt></td> <td><strong>KRB5RCACHEDIR</strong></td> </tr> <tr class="row-even"><td>Master key default enctype</td> <td><tt class="docutils literal"><span class="pre">aes256-cts-hmac-sha1-96</span></tt></td> <td> </td> </tr> <tr class="row-odd"><td>Default <a class="reference internal" href="admin/conf_files/kdc_conf.html#keysalt-lists"><em>keysalt list</em></a></td> <td><tt class="docutils literal"><span class="pre">aes256-cts-hmac-sha1-96:normal</span> <span class="pre">aes128-cts-hmac-sha1-96:normal</span> <span class="pre">des3-cbc-sha1:normal</span> <span class="pre">arcfour-hmac-md5:normal</span></tt></td> <td> </td> </tr> <tr class="row-even"><td>Permitted enctypes</td> <td><tt class="docutils literal"><span class="pre">aes256-cts-hmac-sha1-96</span> <span class="pre">aes128-cts-hmac-sha1-96</span> <span class="pre">des3-cbc-sha1</span> <span class="pre">arcfour-hmac-md5</span> <span class="pre">camellia256-cts-cmac</span> <span class="pre">camellia128-cts-cmac</span> <span class="pre">des-cbc-crc</span> <span class="pre">des-cbc-md5</span> <span class="pre">des-cbc-md4</span></tt></td> <td> </td> </tr> <tr class="row-odd"><td>KDC default port</td> <td>88</td> <td> </td> </tr> <tr class="row-even"><td>Admin server port</td> <td>749</td> <td> </td> </tr> <tr class="row-odd"><td>Password change port</td> <td>464</td> <td> </td> </tr> </tbody> </table> </div> <div class="section" id="slave-kdc-propagation-defaults"> <h2>Slave KDC propagation defaults<a class="headerlink" href="#slave-kdc-propagation-defaults" title="Permalink to this headline">¶</a></h2> <p>This table shows defaults used by the <a class="reference internal" href="admin/admin_commands/kprop.html#kprop-8"><em>kprop</em></a> and <a class="reference internal" href="admin/admin_commands/kpropd.html#kpropd-8"><em>kpropd</em></a> programs.</p> <table border="1" class="docutils"> <colgroup> <col width="39%" /> <col width="45%" /> <col width="16%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">Description</th> <th class="head">Default</th> <th class="head">Environment</th> </tr> </thead> <tbody valign="top"> <tr class="row-even"><td>kprop database dump file</td> <td><tt class="docutils literal"><span class="pre">/var/kerberos</span></tt><tt class="docutils literal"><span class="pre">/krb5kdc</span></tt><tt class="docutils literal"><span class="pre">/slave_datatrans</span></tt></td> <td> </td> </tr> <tr class="row-odd"><td>kpropd temporary dump file</td> <td><tt class="docutils literal"><span class="pre">/var/kerberos</span></tt><tt class="docutils literal"><span class="pre">/krb5kdc</span></tt><tt class="docutils literal"><span class="pre">/from_master</span></tt></td> <td> </td> </tr> <tr class="row-even"><td>kdb5_util location</td> <td><tt class="docutils literal"><span class="pre">/usr/sbin</span></tt><tt class="docutils literal"><span class="pre">/kdb5_util</span></tt></td> <td> </td> </tr> <tr class="row-odd"><td>kprop location</td> <td><tt class="docutils literal"><span class="pre">/usr/sbin</span></tt><tt class="docutils literal"><span class="pre">/kprop</span></tt></td> <td> </td> </tr> <tr class="row-even"><td>kpropd ACL file</td> <td><tt class="docutils literal"><span class="pre">/var/kerberos</span></tt><tt class="docutils literal"><span class="pre">/krb5kdc</span></tt><tt class="docutils literal"><span class="pre">/kpropd.acl</span></tt></td> <td> </td> </tr> <tr class="row-odd"><td>kprop port</td> <td>754</td> <td>KPROP_PORT</td> </tr> </tbody> </table> </div> <div class="section" id="default-paths-for-unix-like-systems"> <span id="paths"></span><h2>Default paths for Unix-like systems<a class="headerlink" href="#default-paths-for-unix-like-systems" title="Permalink to this headline">¶</a></h2> <p>On Unix-like systems, some paths used by MIT krb5 depend on parameters chosen at build time. For a custom build, these paths default to subdirectories of <tt class="docutils literal"><span class="pre">/usr/local</span></tt>. When MIT krb5 is integrated into an operating system, the paths are generally chosen to match the operating system’s filesystem layout.</p> <table border="1" class="docutils"> <colgroup> <col width="28%" /> <col width="14%" /> <col width="29%" /> <col width="29%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">Description</th> <th class="head">Symbolic name</th> <th class="head">Custom build path</th> <th class="head">Typical OS path</th> </tr> </thead> <tbody valign="top"> <tr class="row-even"><td>User programs</td> <td>BINDIR</td> <td><tt class="docutils literal"><span class="pre">/usr/local/bin</span></tt></td> <td><tt class="docutils literal"><span class="pre">/usr/bin</span></tt></td> </tr> <tr class="row-odd"><td>Libraries and plugins</td> <td>LIBDIR</td> <td><tt class="docutils literal"><span class="pre">/usr/local/lib</span></tt></td> <td><tt class="docutils literal"><span class="pre">/usr/lib</span></tt></td> </tr> <tr class="row-even"><td>Parent of KDC state dir</td> <td>LOCALSTATEDIR</td> <td><tt class="docutils literal"><span class="pre">/usr/local/var</span></tt></td> <td><tt class="docutils literal"><span class="pre">/var</span></tt></td> </tr> <tr class="row-odd"><td>Parent of KDC runtime dir</td> <td>RUNSTATEDIR</td> <td><tt class="docutils literal"><span class="pre">/usr/local/var/run</span></tt></td> <td><tt class="docutils literal"><span class="pre">/run</span></tt></td> </tr> <tr class="row-even"><td>Administrative programs</td> <td>SBINDIR</td> <td><tt class="docutils literal"><span class="pre">/usr/local/sbin</span></tt></td> <td><tt class="docutils literal"><span class="pre">/usr/sbin</span></tt></td> </tr> <tr class="row-odd"><td>Alternate krb5.conf dir</td> <td>SYSCONFDIR</td> <td><tt class="docutils literal"><span class="pre">/usr/local/etc</span></tt></td> <td><tt class="docutils literal"><span class="pre">/etc</span></tt></td> </tr> <tr class="row-even"><td>Default ccache name</td> <td>DEFCCNAME</td> <td><tt class="docutils literal"><span class="pre">FILE:/tmp/krb5cc_%{uid}</span></tt></td> <td><tt class="docutils literal"><span class="pre">FILE:/tmp/krb5cc_%{uid}</span></tt></td> </tr> <tr class="row-odd"><td>Default keytab name</td> <td>DEFKTNAME</td> <td><tt class="docutils literal"><span class="pre">FILE:/etc/krb5.keytab</span></tt></td> <td><tt class="docutils literal"><span class="pre">FILE:/etc/krb5.keytab</span></tt></td> </tr> </tbody> </table> <p>The default client keytab name (DEFCKTNAME) typically defaults to <tt class="docutils literal"><span class="pre">FILE:/usr/local/var/krb5/user/%{euid}/client.keytab</span></tt> for a custom build. A native build will typically use a path which will vary according to the operating system’s layout of <tt class="docutils literal"><span class="pre">/var</span></tt>.</p> </div> </div> </div> </div> </div> </div> <div class="sidebar"> <h2>On this page</h2> <ul> <li><a class="reference internal" href="#">MIT Kerberos defaults</a><ul> <li><a class="reference internal" href="#general-defaults">General defaults</a></li> <li><a class="reference internal" href="#slave-kdc-propagation-defaults">Slave KDC propagation defaults</a></li> <li><a class="reference internal" href="#default-paths-for-unix-like-systems">Default paths for Unix-like systems</a></li> </ul> </li> </ul> <br/> <h2>Table of contents</h2> <ul class="current"> <li class="toctree-l1"><a class="reference internal" href="user/index.html">For users</a></li> <li class="toctree-l1 current"><a class="reference internal" href="admin/index.html">For administrators</a><ul class="current"> <li class="toctree-l2"><a class="reference internal" href="admin/install.html">Installation guide</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/conf_files/index.html">Configuration Files</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/realm_config.html">Realm configuration decisions</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/database.html">Database administration</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/lockout.html">Account lockout</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/conf_ldap.html">Configuring Kerberos with OpenLDAP back-end</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/appl_servers.html">Application servers</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/host_config.html">Host configuration</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/backup_host.html">Backups of secure hosts</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/pkinit.html">PKINIT configuration</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/otp.html">OTP Preauthentication</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/princ_dns.html">Principal names and DNS</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/enctypes.html">Encryption types</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/https.html">HTTPS proxy configuration</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/auth_indicator.html">Authentication indicators</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/admin_commands/index.html">Administration programs</a></li> <li class="toctree-l2 current"><a class="current reference internal" href="">MIT Kerberos defaults</a><ul class="simple"> </ul> </li> <li class="toctree-l2"><a class="reference internal" href="admin/env_variables.html">Environment variables</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/troubleshoot.html">Troubleshooting</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/advanced/index.html">Advanced topics</a></li> <li class="toctree-l2"><a class="reference internal" href="admin/various_envs.html">Various links</a></li> </ul> </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: 1.15.1</i><br /> © <a href="copyright.html">Copyright</a> 1985-2017, MIT. </div> <div 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