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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!-- - Copyright (C) 2000-2021 Internet Systems Consortium, Inc. ("ISC") - - This Source Code Form is subject to the terms of the Mozilla Public - License, v. 2.0. If a copy of the MPL was not distributed with this - file, You can obtain one at http://mozilla.org/MPL/2.0/. --> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>ddns-confgen</title> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="Bv9ARM.html" title="BIND 9 Administrator Reference Manual"> <link rel="up" href="Bv9ARM.ch13.html" title="Manual pages"> <link rel="prev" href="man.arpaname.html" title="arpaname"> <link rel="next" href="man.delv.html" title="delv"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr><th colspan="3" align="center"><span class="application">ddns-confgen</span></th></tr> <tr> <td width="20%" align="left"> <a accesskey="p" href="man.arpaname.html">Prev</a>�</td> <th width="60%" align="center">Manual pages</th> <td width="20%" align="right">�<a accesskey="n" href="man.delv.html">Next</a> </td> </tr> </table> <hr> </div> <div class="refentry"> <a name="man.ddns-confgen"></a><div class="titlepage"></div> <div class="refnamediv"> <h2>Name</h2> <p><span class="application">ddns-confgen</span> — ddns key generation tool</p> </div> <div class="refsynopsisdiv"> <h2>Synopsis</h2> <div class="cmdsynopsis"><p><code class="command">tsig-keygen</code> [<code class="option">-a <em class="replaceable"><code>algorithm</code></em></code>] [<code class="option">-h</code>] [<code class="option">-r <em class="replaceable"><code>randomfile</code></em></code>] [name]</p></div> <div class="cmdsynopsis"><p><code class="command">ddns-confgen</code> [<code class="option">-a <em class="replaceable"><code>algorithm</code></em></code>] [<code class="option">-h</code>] [<code class="option">-k <em class="replaceable"><code>keyname</code></em></code>] [<code class="option">-q</code>] [<code class="option">-r <em class="replaceable"><code>randomfile</code></em></code>] [ -s <em class="replaceable"><code>name</code></em> | -z <em class="replaceable"><code>zone</code></em> ]</p></div> </div> <div class="refsection"> <a name="id-1.14.3.7"></a><h2>DESCRIPTION</h2> <p> <span class="command"><strong>tsig-keygen</strong></span> and <span class="command"><strong>ddns-confgen</strong></span> are invocation methods for a utility that generates keys for use in TSIG signing. The resulting keys can be used, for example, to secure dynamic DNS updates to a zone or for the <span class="command"><strong>rndc</strong></span> command channel. </p> <p> When run as <span class="command"><strong>tsig-keygen</strong></span>, a domain name can be specified on the command line which will be used as the name of the generated key. If no name is specified, the default is <code class="constant">tsig-key</code>. </p> <p> When run as <span class="command"><strong>ddns-confgen</strong></span>, the generated key is accompanied by configuration text and instructions that can be used with <span class="command"><strong>nsupdate</strong></span> and <span class="command"><strong>named</strong></span> when setting up dynamic DNS, including an example <span class="command"><strong>update-policy</strong></span> statement. (This usage similar to the <span class="command"><strong>rndc-confgen</strong></span> command for setting up command channel security.) </p> <p> Note that <span class="command"><strong>named</strong></span> itself can configure a local DDNS key for use with <span class="command"><strong>nsupdate -l</strong></span>: it does this when a zone is configured with <span class="command"><strong>update-policy local;</strong></span>. <span class="command"><strong>ddns-confgen</strong></span> is only needed when a more elaborate configuration is required: for instance, if <span class="command"><strong>nsupdate</strong></span> is to be used from a remote system. </p> </div> <div class="refsection"> <a name="id-1.14.3.8"></a><h2>OPTIONS</h2> <div class="variablelist"><dl class="variablelist"> <dt><span class="term">-a <em class="replaceable"><code>algorithm</code></em></span></dt> <dd><p> Specifies the algorithm to use for the TSIG key. Available choices are: hmac-md5, hmac-sha1, hmac-sha224, hmac-sha256, hmac-sha384 and hmac-sha512. The default is hmac-sha256. Options are case-insensitive, and the "hmac-" prefix may be omitted. </p></dd> <dt><span class="term">-h</span></dt> <dd><p> Prints a short summary of options and arguments. </p></dd> <dt><span class="term">-k <em class="replaceable"><code>keyname</code></em></span></dt> <dd><p> Specifies the key name of the DDNS authentication key. The default is <code class="constant">ddns-key</code> when neither the <code class="option">-s</code> nor <code class="option">-z</code> option is specified; otherwise, the default is <code class="constant">ddns-key</code> as a separate label followed by the argument of the option, e.g., <code class="constant">ddns-key.example.com.</code> The key name must have the format of a valid domain name, consisting of letters, digits, hyphens and periods. </p></dd> <dt><span class="term">-q</span></dt> <dd><p> (<span class="command"><strong>ddns-confgen</strong></span> only.) Quiet mode: Print only the key, with no explanatory text or usage examples; This is essentially identical to <span class="command"><strong>tsig-keygen</strong></span>. </p></dd> <dt><span class="term">-r <em class="replaceable"><code>randomfile</code></em></span></dt> <dd><p> Specifies a source of random data for generating the authorization. If the operating system does not provide a <code class="filename">/dev/random</code> or equivalent device, the default source of randomness is keyboard input. <code class="filename">randomdev</code> specifies the name of a character device or file containing random data to be used instead of the default. The special value <code class="filename">keyboard</code> indicates that keyboard input should be used. </p></dd> <dt><span class="term">-s <em class="replaceable"><code>name</code></em></span></dt> <dd><p> (<span class="command"><strong>ddns-confgen</strong></span> only.) Generate configuration example to allow dynamic updates of a single hostname. The example <span class="command"><strong>named.conf</strong></span> text shows how to set an update policy for the specified <em class="replaceable"><code>name</code></em> using the "name" nametype. The default key name is ddns-key.<em class="replaceable"><code>name</code></em>. Note that the "self" nametype cannot be used, since the name to be updated may differ from the key name. This option cannot be used with the <code class="option">-z</code> option. </p></dd> <dt><span class="term">-z <em class="replaceable"><code>zone</code></em></span></dt> <dd><p> (<span class="command"><strong>ddns-confgen</strong></span> only.) Generate configuration example to allow dynamic updates of a zone: The example <span class="command"><strong>named.conf</strong></span> text shows how to set an update policy for the specified <em class="replaceable"><code>zone</code></em> using the "zonesub" nametype, allowing updates to all subdomain names within that <em class="replaceable"><code>zone</code></em>. This option cannot be used with the <code class="option">-s</code> option. </p></dd> </dl></div> </div> <div class="refsection"> <a name="id-1.14.3.9"></a><h2>SEE ALSO</h2> <p><span class="citerefentry"><span class="refentrytitle">nsupdate</span>(1)</span>, <span class="citerefentry"><span class="refentrytitle">named.conf</span>(5)</span>, <span class="citerefentry"><span class="refentrytitle">named</span>(8)</span>, <em class="citetitle">BIND 9 Administrator Reference Manual</em>. </p> </div> </div> <div class="navfooter"> <hr> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"> <a accesskey="p" href="man.arpaname.html">Prev</a>�</td> <td width="20%" align="center"><a accesskey="u" href="Bv9ARM.ch13.html">Up</a></td> <td width="40%" align="right">�<a accesskey="n" href="man.delv.html">Next</a> </td> </tr> <tr> <td width="40%" align="left" valign="top"> <span class="application">arpaname</span>�</td> <td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td> <td width="40%" align="right" valign="top">�delv</td> </tr> </table> </div> <p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.36 (Extended Support Version)</p> </body> </html>
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