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- <h1><a href="../../index.html">MIT Kerberos Documentation</a></h1>
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- <section id="kpropd">
-<span id="kpropd-8"></span><h1>kpropd<a class="headerlink" href="#kpropd" title="Link to this heading">¶</a></h1>
-<section id="synopsis">
-<h2>SYNOPSIS<a class="headerlink" href="#synopsis" title="Link to this heading">¶</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>replica_dumpfile</em>]
-[<strong>-F</strong> <em>principal_database</em>]
-[<strong>-p</strong> <em>kdb5_util_prog</em>]
-[<strong>-P</strong> <em>port</em>]
-[<strong>–pid-file</strong>=<em>pid_file</em>]
-[<strong>-D</strong>]
-[<strong>-d</strong>]
-[<strong>-s</strong> <em>keytab_file</em>]</p>
-</section>
-<section id="description">
-<h2>DESCRIPTION<a class="headerlink" href="#description" title="Link to this heading">¶</a></h2>
-<p>The <em>kpropd</em> command runs on the replica KDC server. It listens for
-update requests made by the <a class="reference internal" href="kprop.html#kprop-8"><span class="std std-ref">kprop</span></a> program. If incremental
-propagation is enabled, it periodically requests incremental updates
-from the primary KDC.</p>
-<p>When the replica receives a kprop request from the primary, 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"><span class="std std-ref">kdb5_util</span></a> to load the dumped database into the active
-database which is used by <a class="reference internal" href="krb5kdc.html#krb5kdc-8"><span class="std std-ref">krb5kdc</span></a>. This allows the primary
-Kerberos server to use <a class="reference internal" href="kprop.html#kprop-8"><span class="std std-ref">kprop</span></a> to propagate its database to
-the replica servers. Upon a successful download of the KDC database
-file, the replica 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 <code class="docutils literal notranslate"><span class="pre">/etc/inetd.conf</span></code> file which looks like this:</p>
-<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">kprop</span> <span class="n">stream</span> <span class="n">tcp</span> <span class="n">nowait</span> <span class="n">root</span> <span class="o">/</span><span class="n">usr</span><span class="o">/</span><span class="n">local</span><span class="o">/</span><span class="n">sbin</span><span class="o">/</span><span class="n">kpropd</span> <span class="n">kpropd</span>
-</pre></div>
-</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"><span class="std std-ref">kdc.conf</span></a>. If incremental propagation is
-enabled, the replica periodically polls the primary KDC for updates, at
-an interval determined by the <strong>iprop_replica_poll</strong> variable. If the
-replica receives updates, kpropd updates its log file with any updates
-from the primary. <a class="reference internal" href="kproplog.html#kproplog-8"><span class="std std-ref">kproplog</span></a> can be used to view a summary of
-the update entry log on the replica KDC. If incremental propagation
-is enabled, the principal <code class="docutils literal notranslate"><span class="pre">kiprop/replicahostname&#64;REALM</span></code> (where
-<em>replicahostname</em> is the name of the replica KDC host, and <em>REALM</em> is
-the name of the Kerberos realm) must be present in the replica’s
-keytab file.</p>
-<p><a class="reference internal" href="kproplog.html#kproplog-8"><span class="std std-ref">kproplog</span></a> can be used to force full replication when iprop is
-enabled.</p>
-</section>
-<section id="options">
-<h2>OPTIONS<a class="headerlink" href="#options" title="Link to this heading">¶</a></h2>
-<dl class="simple">
-<dt><strong>-r</strong> <em>realm</em></dt><dd><p>Specifies the realm of the primary server.</p>
-</dd>
-<dt><strong>-A</strong> <em>admin_server</em></dt><dd><p>Specifies the server to be contacted for incremental updates; by
-default, the primary admin server is contacted.</p>
-</dd>
-<dt><strong>-f</strong> <em>file</em></dt><dd><p>Specifies the filename where the dumped principal database file is
-to be stored; by default the dumped database file is <a class="reference internal" href="../../mitK5defaults.html#paths"><span class="std std-ref">LOCALSTATEDIR</span></a><code class="docutils literal notranslate"><span class="pre">/krb5kdc</span></code><code class="docutils literal notranslate"><span class="pre">/from_master</span></code>.</p>
-</dd>
-<dt><strong>-F</strong> <em>kerberos_db</em></dt><dd><p>Path to the Kerberos database file, if not the default.</p>
-</dd>
-<dt><strong>-p</strong></dt><dd><p>Allows the user to specify the pathname to the <a class="reference internal" href="kdb5_util.html#kdb5-util-8"><span class="std std-ref">kdb5_util</span></a>
-program; by default the pathname used is <a class="reference internal" href="../../mitK5defaults.html#paths"><span class="std std-ref">SBINDIR</span></a><code class="docutils literal notranslate"><span class="pre">/kdb5_util</span></code>.</p>
-</dd>
-<dt><strong>-D</strong></dt><dd><p>In this mode, kpropd will not detach itself from the current job
-and run in the background. Instead, it will run in the
-foreground.</p>
-</dd>
-<dt><strong>-d</strong></dt><dd><p>Turn on debug mode. kpropd will print out debugging messages
-during the database propogation and will run in the foreground
-(implies <strong>-D</strong>).</p>
-</dd>
-<dt><strong>-P</strong></dt><dd><p>Allow for an alternate port number for kpropd to listen on. This
-is only useful in combination with the <strong>-S</strong> option.</p>
-</dd>
-<dt><strong>-a</strong> <em>acl_file</em></dt><dd><p>Allows the user to specify the path to the kpropd.acl file; by
-default the path used is <a class="reference internal" href="../../mitK5defaults.html#paths"><span class="std std-ref">LOCALSTATEDIR</span></a><code class="docutils literal notranslate"><span class="pre">/krb5kdc</span></code><code class="docutils literal notranslate"><span class="pre">/kpropd.acl</span></code>.</p>
-</dd>
-<dt><strong>–pid-file</strong>=<em>pid_file</em></dt><dd><p>In standalone mode, write the process ID of the daemon into
-<em>pid_file</em>.</p>
-</dd>
-<dt><strong>-s</strong> <em>keytab_file</em></dt><dd><p>Path to a keytab to use for acquiring acceptor credentials.</p>
-</dd>
-<dt><strong>-x</strong> <em>db_args</em></dt><dd><p>Database-specific arguments. See <a class="reference internal" href="kadmin_local.html#dboptions"><span class="std std-ref">Database Options</span></a> in <a class="reference internal" href="kadmin_local.html#kadmin-1"><span class="std std-ref">kadmin</span></a> for supported arguments.</p>
-</dd>
-</dl>
-</section>
-<section id="files">
-<h2>FILES<a class="headerlink" href="#files" title="Link to this heading">¶</a></h2>
-<dl class="simple">
-<dt>kpropd.acl</dt><dd><p>Access file for kpropd; the default location is
-<code class="docutils literal notranslate"><span class="pre">/usr/local/var/krb5kdc/kpropd.acl</span></code>. 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"><span class="std std-ref">kprop</span></a>.</p>
-</dd>
-</dl>
-</section>
-<section id="environment">
-<h2>ENVIRONMENT<a class="headerlink" href="#environment" title="Link to this heading">¶</a></h2>
-<p>See <a class="reference internal" href="../../user/user_config/kerberos.html#kerberos-7"><span class="std std-ref">kerberos</span></a> for a description of Kerberos environment
-variables.</p>
-</section>
-<section id="see-also">
-<h2>SEE ALSO<a class="headerlink" href="#see-also" title="Link to this heading">¶</a></h2>
-<p><a class="reference internal" href="kprop.html#kprop-8"><span class="std std-ref">kprop</span></a>, <a class="reference internal" href="kdb5_util.html#kdb5-util-8"><span class="std std-ref">kdb5_util</span></a>, <a class="reference internal" href="krb5kdc.html#krb5kdc-8"><span class="std std-ref">krb5kdc</span></a>,
-<a class="reference internal" href="../../user/user_config/kerberos.html#kerberos-7"><span class="std std-ref">kerberos</span></a>, inetd(8)</p>
-</section>
-</section>
-
-
- <div class="clearer"></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="#files">FILES</a></li>
-<li><a class="reference internal" href="#environment">ENVIRONMENT</a></li>
-<li><a class="reference internal" href="#see-also">SEE ALSO</a></li>
-</ul>
-</li>
-</ul>
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-<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>
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-<li class="toctree-l1"><a class="reference internal" href="../../mitK5features.html">MIT Kerberos features</a></li>
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-<li class="toctree-l1"><a class="reference internal" href="../../about.html">Contributing to the MIT Kerberos Documentation</a></li>
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