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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>kpropd — 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" href="../../copyright.html" /> <link rel="top" title="MIT Kerberos Documentation" href="../../index.html" /> <link rel="up" title="Administration programs" href="index.html" /> <link rel="next" title="kproplog" href="kproplog.html" /> <link rel="prev" title="kprop" href="kprop.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="kprop.html" title="kprop" accesskey="P">previous</a> | <a href="kproplog.html" title="kproplog" 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__kpropd">feedback</a> </div> </div> </div> <div class="content-wrapper"> <div class="content"> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body"> <div class="section" id="kpropd"> <span id="kpropd-8"></span><h1>kpropd<a class="headerlink" href="#kpropd" title="Permalink to this headline">¶</a></h1> <div class="section" id="synopsis"> <h2>SYNOPSIS<a class="headerlink" href="#synopsis" title="Permalink to this headline">¶</a></h2> <p><strong>kpropd</strong> [<strong>-r</strong> <em>realm</em>] [<strong>-A</strong> <em>admin_server</em>] [<strong>-a</strong> <em>acl_file</em>] [<strong>-f</strong> <em>slave_dumpfile</em>] [<strong>-F</strong> <em>principal_database</em>] [<strong>-p</strong> <em>kdb5_util_prog</em>] [<strong>-P</strong> <em>port</em>] [<strong>-d</strong>] [<strong>-t</strong>]</p> </div> <div class="section" id="description"> <h2>DESCRIPTION<a class="headerlink" href="#description" title="Permalink to this headline">¶</a></h2> <p>The <em>kpropd</em> command runs on the slave KDC server. It listens for update requests made by the <a class="reference internal" href="kprop.html#kprop-8"><em>kprop</em></a> program. If incremental propagation is enabled, it periodically requests incremental updates from the master KDC.</p> <p>When the slave receives a kprop request from the master, kpropd accepts the dumped KDC database and places it in a file, and then runs <a class="reference internal" href="kdb5_util.html#kdb5-util-8"><em>kdb5_util</em></a> to load the dumped database into the active database which is used by <a class="reference internal" href="krb5kdc.html#krb5kdc-8"><em>krb5kdc</em></a>. This allows the master Kerberos server to use <a class="reference internal" href="kprop.html#kprop-8"><em>kprop</em></a> to propagate its database to the slave servers. Upon a successful download of the KDC database file, the slave Kerberos server will have an up-to-date KDC database.</p> <p>Where incremental propagation is not used, kpropd is commonly invoked out of inetd(8) as a nowait service. This is done by adding a line to the <tt class="docutils literal"><span class="pre">/etc/inetd.conf</span></tt> file which looks like this:</p> <div class="highlight-python"><pre>kprop stream tcp nowait root /usr/local/sbin/kpropd kpropd</pre> </div> <p>kpropd can also run as a standalone daemon, backgrounding itself and waiting for connections on port 754 (or the port specified with the <strong>-P</strong> option if given). Standalone mode is required for incremental propagation. Starting in release 1.11, kpropd automatically detects whether it was run from inetd and runs in standalone mode if it is not. Prior to release 1.11, the <strong>-S</strong> option is required to run kpropd in standalone mode; this option is now accepted for backward compatibility but does nothing.</p> <p>Incremental propagation may be enabled with the <strong>iprop_enable</strong> variable in <a class="reference internal" href="../conf_files/kdc_conf.html#kdc-conf-5"><em>kdc.conf</em></a>. If incremental propagation is enabled, the slave periodically polls the master KDC for updates, at an interval determined by the <strong>iprop_slave_poll</strong> variable. If the slave receives updates, kpropd updates its log file with any updates from the master. <a class="reference internal" href="kproplog.html#kproplog-8"><em>kproplog</em></a> can be used to view a summary of the update entry log on the slave KDC. If incremental propagation is enabled, the principal <tt class="docutils literal"><span class="pre">kiprop/slavehostname@REALM</span></tt> (where <em>slavehostname</em> is the name of the slave KDC host, and <em>REALM</em> is the name of the Kerberos realm) must be present in the slave’s keytab file.</p> <p><a class="reference internal" href="kproplog.html#kproplog-8"><em>kproplog</em></a> can be used to force full replication when iprop is enabled.</p> </div> <div class="section" id="options"> <h2>OPTIONS<a class="headerlink" href="#options" title="Permalink to this headline">¶</a></h2> <dl class="docutils"> <dt><strong>-r</strong> <em>realm</em></dt> <dd>Specifies the realm of the master server.</dd> <dt><strong>-A</strong> <em>admin_server</em></dt> <dd>Specifies the server to be contacted for incremental updates; by default, the master admin server is contacted.</dd> <dt><strong>-f</strong> <em>file</em></dt> <dd>Specifies the filename where the dumped principal database file is to be stored; by default the dumped database file is <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>.</dd> <dt><strong>-p</strong></dt> <dd>Allows the user to specify the pathname to the <a class="reference internal" href="kdb5_util.html#kdb5-util-8"><em>kdb5_util</em></a> program; by default the pathname used is <tt class="docutils literal"><span class="pre">/usr/sbin</span></tt><tt class="docutils literal"><span class="pre">/kdb5_util</span></tt>.</dd> <dt><strong>-d</strong></dt> <dd>Turn on debug mode. In this mode, kpropd will not detach itself from the current job and run in the background. Instead, it will run in the foreground and print out debugging messages during the database propagation.</dd> <dt><strong>-t</strong></dt> <dd>In standalone mode without incremental propagation, exit after one dump file is received. In incremental propagation mode, exit as soon as the database is up to date, or if the master returns an error.</dd> <dt><strong>-P</strong></dt> <dd>Allow for an alternate port number for kpropd to listen on. This is only useful in combination with the <strong>-S</strong> option.</dd> <dt><strong>-a</strong> <em>acl_file</em></dt> <dd>Allows the user to specify the path to the kpropd.acl file; by default the path used is <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>.</dd> </dl> </div> <div class="section" id="environment"> <h2>ENVIRONMENT<a class="headerlink" href="#environment" title="Permalink to this headline">¶</a></h2> <p>kpropd uses the following environment variables:</p> <ul class="simple"> <li><strong>KRB5_CONFIG</strong></li> <li><strong>KRB5_KDC_PROFILE</strong></li> </ul> </div> <div class="section" id="files"> <h2>FILES<a class="headerlink" href="#files" title="Permalink to this headline">¶</a></h2> <dl class="docutils"> <dt>kpropd.acl</dt> <dd>Access file for kpropd; the default location is <tt class="docutils literal"><span class="pre">/usr/local/var/krb5kdc/kpropd.acl</span></tt>. Each entry is a line containing the principal of a host from which the local machine will allow Kerberos database propagation via <a class="reference internal" href="kprop.html#kprop-8"><em>kprop</em></a>.</dd> </dl> </div> <div class="section" id="id1"> <h2>ENVIRONMENT<a class="headerlink" href="#id1" title="Permalink to this headline">¶</a></h2> <p>See <a class="reference internal" href="../../user/user_config/kerberos.html#kerberos-7"><em>kerberos</em></a> for a description of Kerberos environment variables.</p> </div> <div class="section" id="see-also"> <h2>SEE ALSO<a class="headerlink" href="#see-also" title="Permalink to this headline">¶</a></h2> <p><a class="reference internal" href="kprop.html#kprop-8"><em>kprop</em></a>, <a class="reference internal" href="kdb5_util.html#kdb5-util-8"><em>kdb5_util</em></a>, <a class="reference internal" href="krb5kdc.html#krb5kdc-8"><em>krb5kdc</em></a>, <a class="reference internal" href="../../user/user_config/kerberos.html#kerberos-7"><em>kerberos</em></a>, inetd(8)</p> </div> </div> </div> </div> </div> </div> <div class="sidebar"> <h2>On this page</h2> <ul> <li><a class="reference internal" href="#">kpropd</a><ul> <li><a class="reference internal" href="#synopsis">SYNOPSIS</a></li> <li><a class="reference internal" href="#description">DESCRIPTION</a></li> <li><a class="reference internal" href="#options">OPTIONS</a></li> <li><a class="reference internal" href="#environment">ENVIRONMENT</a></li> <li><a class="reference internal" href="#files">FILES</a></li> <li><a class="reference internal" href="#id1">ENVIRONMENT</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"><a class="reference internal" href="../../user/index.html">For users</a></li> <li class="toctree-l1 current"><a class="reference internal" href="../index.html">For administrators</a><ul class="current"> <li class="toctree-l2"><a class="reference internal" href="../install.html">Installation guide</a></li> <li class="toctree-l2"><a class="reference internal" href="../conf_files/index.html">Configuration Files</a></li> <li class="toctree-l2"><a class="reference internal" href="../realm_config.html">Realm configuration decisions</a></li> <li class="toctree-l2"><a class="reference internal" href="../database.html">Database administration</a></li> <li class="toctree-l2"><a class="reference internal" href="../lockout.html">Account lockout</a></li> <li class="toctree-l2"><a class="reference internal" href="../conf_ldap.html">Configuring Kerberos with OpenLDAP back-end</a></li> <li class="toctree-l2"><a class="reference internal" href="../appl_servers.html">Application servers</a></li> <li class="toctree-l2"><a class="reference internal" href="../host_config.html">Host configuration</a></li> <li class="toctree-l2"><a class="reference internal" href="../backup_host.html">Backups of secure hosts</a></li> <li class="toctree-l2"><a class="reference internal" href="../pkinit.html">PKINIT configuration</a></li> <li class="toctree-l2"><a class="reference internal" href="../otp.html">OTP Preauthentication</a></li> <li class="toctree-l2"><a class="reference internal" href="../princ_dns.html">Principal names and DNS</a></li> <li class="toctree-l2"><a class="reference internal" href="../enctypes.html">Encryption types</a></li> <li class="toctree-l2"><a class="reference internal" href="../https.html">HTTPS proxy configuration</a></li> <li class="toctree-l2"><a class="reference internal" href="../auth_indicator.html">Authentication indicators</a></li> <li class="toctree-l2 current"><a class="reference internal" href="index.html">Administration programs</a><ul class="current"> <li class="toctree-l3"><a class="reference internal" href="kadmin_local.html">kadmin</a></li> <li class="toctree-l3"><a class="reference internal" href="kadmind.html">kadmind</a></li> <li class="toctree-l3"><a class="reference internal" href="kdb5_util.html">kdb5_util</a></li> <li class="toctree-l3"><a class="reference internal" href="kdb5_ldap_util.html">kdb5_ldap_util</a></li> <li class="toctree-l3"><a class="reference internal" href="krb5kdc.html">krb5kdc</a></li> <li class="toctree-l3"><a class="reference internal" href="kprop.html">kprop</a></li> <li class="toctree-l3 current"><a class="current reference internal" href="">kpropd</a></li> <li class="toctree-l3"><a class="reference internal" href="kproplog.html">kproplog</a></li> <li class="toctree-l3"><a class="reference internal" href="ktutil.html">ktutil</a></li> <li class="toctree-l3"><a class="reference internal" href="k5srvutil.html">k5srvutil</a></li> <li class="toctree-l3"><a class="reference internal" href="sserver.html">sserver</a></li> </ul> </li> <li class="toctree-l2"><a class="reference internal" href="../../mitK5defaults.html">MIT Kerberos defaults</a></li> <li class="toctree-l2"><a class="reference internal" href="../env_variables.html">Environment variables</a></li> <li class="toctree-l2"><a class="reference internal" href="../troubleshoot.html">Troubleshooting</a></li> <li class="toctree-l2"><a class="reference internal" href="../advanced/index.html">Advanced topics</a></li> <li class="toctree-l2"><a class="reference internal" href="../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" 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