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- Copyright (C) 2004-2012 Internet Systems Consortium, Inc. ("ISC")
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<!-- $Id$ -->
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>rndc</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.71.1">
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<link rel="start" href="Bv9ARM.html" title="BIND 9 Administrator Reference Manual">
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<link rel="up" href="Bv9ARM.ch10.html" title="Manual pages">
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2009-05-31 00:11:36 +00:00
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<link rel="prev" href="man.nsupdate.html" title="nsupdate">
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<link rel="next" href="man.rndc.conf.html" title="rndc.conf">
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<table width="100%" summary="Navigation header">
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<tr><th colspan="3" align="center"><span class="application">rndc</span></th></tr>
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<tr>
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<td width="20%" align="left">
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<a accesskey="p" href="man.nsupdate.html">Prev</a><EFBFBD></td>
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<th width="60%" align="center">Manual pages</th>
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<td width="20%" align="right"><EFBFBD><a accesskey="n" href="man.rndc.conf.html">Next</a>
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</td>
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</tr>
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</table>
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<hr>
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</div>
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<div class="refentry" lang="en">
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<a name="man.rndc"></a><div class="titlepage"></div>
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<div class="refnamediv">
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<h2>Name</h2>
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<p><span class="application">rndc</span> — name server control utility</p>
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</div>
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<div class="refsynopsisdiv">
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<h2>Synopsis</h2>
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<div class="cmdsynopsis"><p><code class="command">rndc</code> [<code class="option">-b <em class="replaceable"><code>source-address</code></em></code>] [<code class="option">-c <em class="replaceable"><code>config-file</code></em></code>] [<code class="option">-k <em class="replaceable"><code>key-file</code></em></code>] [<code class="option">-s <em class="replaceable"><code>server</code></em></code>] [<code class="option">-p <em class="replaceable"><code>port</code></em></code>] [<code class="option">-V</code>] [<code class="option">-y <em class="replaceable"><code>key_id</code></em></code>] {command}</p></div>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2640665"></a><h2>DESCRIPTION</h2>
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<p><span><strong class="command">rndc</strong></span>
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controls the operation of a name
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server. It supersedes the <span><strong class="command">ndc</strong></span> utility
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that was provided in old BIND releases. If
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<span><strong class="command">rndc</strong></span> is invoked with no command line
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options or arguments, it prints a short summary of the
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supported commands and the available options and their
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arguments.
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</p>
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<p><span><strong class="command">rndc</strong></span>
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communicates with the name server
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over a TCP connection, sending commands authenticated with
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digital signatures. In the current versions of
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<span><strong class="command">rndc</strong></span> and <span><strong class="command">named</strong></span>,
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the only supported authentication algorithm is HMAC-MD5,
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which uses a shared secret on each end of the connection.
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This provides TSIG-style authentication for the command
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request and the name server's response. All commands sent
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over the channel must be signed by a key_id known to the
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server.
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</p>
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<p><span><strong class="command">rndc</strong></span>
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reads a configuration file to
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determine how to contact the name server and decide what
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algorithm and key it should use.
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</p>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2640715"></a><h2>OPTIONS</h2>
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<div class="variablelist"><dl>
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<dt><span class="term">-b <em class="replaceable"><code>source-address</code></em></span></dt>
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<dd><p>
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Use <em class="replaceable"><code>source-address</code></em>
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as the source address for the connection to the server.
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Multiple instances are permitted to allow setting of both
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the IPv4 and IPv6 source addresses.
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</p></dd>
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<dt><span class="term">-c <em class="replaceable"><code>config-file</code></em></span></dt>
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<dd><p>
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Use <em class="replaceable"><code>config-file</code></em>
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as the configuration file instead of the default,
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<code class="filename">/etc/rndc.conf</code>.
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</p></dd>
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<dt><span class="term">-k <em class="replaceable"><code>key-file</code></em></span></dt>
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<dd><p>
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Use <em class="replaceable"><code>key-file</code></em>
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as the key file instead of the default,
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<code class="filename">/etc/rndc.key</code>. The key in
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<code class="filename">/etc/rndc.key</code> will be used to
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authenticate
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commands sent to the server if the <em class="replaceable"><code>config-file</code></em>
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does not exist.
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</p></dd>
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<dt><span class="term">-s <em class="replaceable"><code>server</code></em></span></dt>
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<dd><p><em class="replaceable"><code>server</code></em> is
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the name or address of the server which matches a
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server statement in the configuration file for
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<span><strong class="command">rndc</strong></span>. If no server is supplied on the
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command line, the host named by the default-server clause
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in the options statement of the <span><strong class="command">rndc</strong></span>
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configuration file will be used.
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</p></dd>
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<dt><span class="term">-p <em class="replaceable"><code>port</code></em></span></dt>
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<dd><p>
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Send commands to TCP port
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<em class="replaceable"><code>port</code></em>
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instead
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of BIND 9's default control channel port, 953.
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</p></dd>
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<dt><span class="term">-V</span></dt>
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<dd><p>
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Enable verbose logging.
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</p></dd>
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<dt><span class="term">-y <em class="replaceable"><code>key_id</code></em></span></dt>
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<dd><p>
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Use the key <em class="replaceable"><code>key_id</code></em>
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from the configuration file.
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<em class="replaceable"><code>key_id</code></em>
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must be
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known by named with the same algorithm and secret string
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in order for control message validation to succeed.
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If no <em class="replaceable"><code>key_id</code></em>
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is specified, <span><strong class="command">rndc</strong></span> will first look
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for a key clause in the server statement of the server
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being used, or if no server statement is present for that
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host, then the default-key clause of the options statement.
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Note that the configuration file contains shared secrets
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which are used to send authenticated control commands
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to name servers. It should therefore not have general read
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or write access.
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</p></dd>
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</dl></div>
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<p>
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For the complete set of commands supported by <span><strong class="command">rndc</strong></span>,
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see the BIND 9 Administrator Reference Manual or run
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<span><strong class="command">rndc</strong></span> without arguments to see its help
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message.
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</p>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2640940"></a><h2>LIMITATIONS</h2>
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<p><span><strong class="command">rndc</strong></span>
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does not yet support all the commands of
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the BIND 8 <span><strong class="command">ndc</strong></span> utility.
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</p>
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<p>
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There is currently no way to provide the shared secret for a
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<code class="option">key_id</code> without using the configuration file.
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</p>
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<p>
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Several error messages could be clearer.
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</p>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2640971"></a><h2>SEE ALSO</h2>
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<p><span class="citerefentry"><span class="refentrytitle">rndc.conf</span>(5)</span>,
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2008-12-23 18:35:21 +00:00
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<span class="citerefentry"><span class="refentrytitle">rndc-confgen</span>(8)</span>,
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<span class="citerefentry"><span class="refentrytitle">named</span>(8)</span>,
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<span class="citerefentry"><span class="refentrytitle">named.conf</span>(5)</span>,
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<span class="citerefentry"><span class="refentrytitle">ndc</span>(8)</span>,
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<em class="citetitle">BIND 9 Administrator Reference Manual</em>.
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</p>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2641027"></a><h2>AUTHOR</h2>
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<p><span class="corpauthor">Internet Systems Consortium</span>
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</p>
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</div>
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2009-05-31 00:11:36 +00:00
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<a accesskey="p" href="man.nsupdate.html">Prev</a><EFBFBD></td>
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<td width="20%" align="center"><a accesskey="u" href="Bv9ARM.ch10.html">Up</a></td>
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<td width="40%" align="right"><EFBFBD><a accesskey="n" href="man.rndc.conf.html">Next</a>
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<td width="40%" align="left" valign="top">
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2009-05-31 00:11:36 +00:00
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<span class="application">nsupdate</span><EFBFBD></td>
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2007-06-02 23:21:47 +00:00
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<td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td>
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<td width="40%" align="right" valign="top"><EFBFBD><code class="filename">rndc.conf</code>
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</td>
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