rndc.html revision 75c0816e8295e180f4bc7f10db3d0d880383bc1c
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC")
75c0816e8295e180f4bc7f10db3d0d880383bc1cMark Andrews - Copyright (C) 2000, 2001 Internet Software Consortium.
4610465ed9408cbe434dbfb8be8ea53f48969c91Bob Halley - Permission to use, copy, modify, and distribute this software for any
4610465ed9408cbe434dbfb8be8ea53f48969c91Bob Halley - purpose with or without fee is hereby granted, provided that the above
4610465ed9408cbe434dbfb8be8ea53f48969c91Bob Halley - copyright notice and this permission notice appear in all copies.
8a66318e41ed14c5a88130e8c362610e8faa2121Mark Andrews - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
8a66318e41ed14c5a88130e8c362610e8faa2121Mark Andrews - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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75c0816e8295e180f4bc7f10db3d0d880383bc1cMark Andrews<!-- $Id: rndc.html,v 1.18 2005/05/13 03:14:08 marka Exp $ -->
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75c0816e8295e180f4bc7f10db3d0d880383bc1cMark Andrews<a name="id2456836"></a><div class="titlepage"></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p><span class="application">rndc</span> — name server control utility</p>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<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>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p><span><strong class="command">rndc</strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein controls the operation of a name
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein server. It supersedes the <span><strong class="command">ndc</strong></span> utility
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein that was provided in old BIND releases. If
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span><strong class="command">rndc</strong></span> is invoked with no command line
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein options or arguments, it prints a short summary of the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein supported commands and the available options and their
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p><span><strong class="command">rndc</strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein communicates with the name server
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein over a TCP connection, sending commands authenticated with
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein digital signatures. In the current versions of
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span><strong class="command">rndc</strong></span> and <span><strong class="command">named</strong></span> named
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the only supported authentication algorithm is HMAC-MD5,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein which uses a shared secret on each end of the connection.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein This provides TSIG-style authentication for the command
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein request and the name server's response. All commands sent
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein over the channel must be signed by a key_id known to the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p><span><strong class="command">rndc</strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein reads a configuration file to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein determine how to contact the name server and decide what
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein algorithm and key it should use.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="term">-b <em class="replaceable"><code>source-address</code></em></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Use <em class="replaceable"><code>source-address</code></em>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein as the source address for the connection to the server.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Multiple instances are permitted to allow setting of both
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the IPv4 and IPv6 source addresses.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="term">-c <em class="replaceable"><code>config-file</code></em></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Use <em class="replaceable"><code>config-file</code></em>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein as the configuration file instead of the default,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="term">-k <em class="replaceable"><code>key-file</code></em></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Use <em class="replaceable"><code>key-file</code></em>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein as the key file instead of the default,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="filename">/etc/rndc.key</code>. The key in
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="filename">/etc/rndc.key</code> will be used to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein authenticate
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein commands sent to the server if the <em class="replaceable"><code>config-file</code></em>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein does not exist.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="term">-s <em class="replaceable"><code>server</code></em></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dd><p><em class="replaceable"><code>server</code></em> is
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the name or address of the server which matches a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein server statement in the configuration file for
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span><strong class="command">rndc</strong></span>. If no server is supplied on
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein command line, the host named by the default-server clause
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein in the option statement of the configuration file will be
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="term">-p <em class="replaceable"><code>port</code></em></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Send commands to TCP port
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein of BIND 9's default control channel port, 953.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Enable verbose logging.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="term">-y <em class="replaceable"><code>keyid</code></em></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Use the key <em class="replaceable"><code>keyid</code></em>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein from the configuration file.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein known by named with the same algorithm and secret string
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein in order for control message validation to succeed.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein If no <em class="replaceable"><code>keyid</code></em>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein is specified, <span><strong class="command">rndc</strong></span> will first look
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein for a key clause in the server statement of the server
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein being used, or if no server statement is present for that
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein host, then the default-key clause of the options statement.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Note that the configuration file contains shared secrets
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein which are used to send authenticated control commands
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to name servers. It should therefore not have general read
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein or write access.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein For the complete set of commands supported by <span><strong class="command">rndc</strong></span>,
4610465ed9408cbe434dbfb8be8ea53f48969c91Bob Halley see the BIND 9 Administrator Reference Manual or run
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span><strong class="command">rndc</strong></span> without arguments to see its help
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p><span><strong class="command">rndc</strong></span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein does not yet support all the commands of
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the BIND 8 <span><strong class="command">ndc</strong></span> utility.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein There is currently no way to provide the shared secret for a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <code class="option">key_id</code> without using the configuration file.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Several error messages could be clearer.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p><span class="citerefentry"><span class="refentrytitle">rndc.conf</span>(5)</span>,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="citerefentry"><span class="refentrytitle">named</span>(8)</span>,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="citerefentry"><span class="refentrytitle">named.conf</span>(5)</span>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <span class="citerefentry"><span class="refentrytitle">ndc</span>(8)</span>,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <em class="citetitle">BIND 9 Administrator Reference Manual</em>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p><span class="corpauthor">Internet Systems Consortium</span>