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3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync - Copyright (C) 2004-2013 Internet Systems Consortium, Inc. ("ISC")
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync - Copyright (C) 2000-2003 Internet Software Consortium.
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3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync<a name="man.ddns-confgen"></a><div class="titlepage"></div>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync<p><span class="application">ddns-confgen</span> — ddns key generation tool</p>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync<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">-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> ] [<code class="option">-q</code>] [name]</p></div>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync<p><span><strong class="command">ddns-confgen</strong></span>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync generates a key for use by <span><strong class="command">nsupdate</strong></span>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync and <span><strong class="command">named</strong></span>. It simplifies configuration
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync of dynamic zones by generating a key and providing the
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <span><strong class="command">nsupdate</strong></span> and <span><strong class="command">named.conf</strong></span>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync syntax that will be needed to use it, including an example
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <span><strong class="command">update-policy</strong></span> statement.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync If a domain name is specified on the command line, it will
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync be used in the name of the generated key and in the sample
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <span><strong class="command">named.conf</strong></span> syntax. For example,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <span><strong class="command">ddns-confgen example.com</strong></span> would
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync generate a key called "ddns-key.example.com", and sample
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <span><strong class="command">named.conf</strong></span> command that could be used
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync in the zone definition for "example.com".
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync Note that <span><strong class="command">named</strong></span> itself can configure a
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync local DDNS key for use with <span><strong class="command">nsupdate -l</strong></span>.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <span><strong class="command">ddns-confgen</strong></span> is only needed when a
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync more elaborate configuration is required: for instance, if
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <span><strong class="command">nsupdate</strong></span> is to be used from a remote system.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync<dt><span class="term">-a <em class="replaceable"><code>algorithm</code></em></span></dt>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync Specifies the algorithm to use for the TSIG key. Available
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync choices are: hmac-md5, hmac-sha1, hmac-sha224, hmac-sha256,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync hmac-sha384 and hmac-sha512. The default is hmac-sha256.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync Prints a short summary of the options and arguments to
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <span><strong class="command">ddns-confgen</strong></span>.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync<dt><span class="term">-k <em class="replaceable"><code>keyname</code></em></span></dt>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync Specifies the key name of the DDNS authentication key.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync The default is <code class="constant">ddns-key</code> when neither
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync the <code class="option">-s</code> nor <code class="option">-z</code> option is
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync specified; otherwise, the default
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync is <code class="constant">ddns-key</code> as a separate label
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync followed by the argument of the option, e.g.,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <code class="constant">ddns-key.example.com.</code>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync The key name must have the format of a valid domain name,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync consisting of letters, digits, hyphens and periods.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync Quiet mode: Print only the key, with no explanatory text or
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync usage examples.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync<dt><span class="term">-r <em class="replaceable"><code>randomfile</code></em></span></dt>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync Specifies a source of random data for generating the
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync authorization. If the operating system does not provide a
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <code class="filename">/dev/random</code> or equivalent device, the
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync default source of randomness is keyboard input.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <code class="filename">randomdev</code> specifies the name of a
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync character device or file containing random data to be used
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync instead of the default. The special value
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <code class="filename">keyboard</code> indicates that keyboard input
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync should be used.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync<dt><span class="term">-s <em class="replaceable"><code>name</code></em></span></dt>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync Single host mode: The example <span><strong class="command">named.conf</strong></span> text
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync shows how to set an update policy for the specified
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync using the "name" nametype.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync The default key name is
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync ddns-key.<em class="replaceable"><code>name</code></em>.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync Note that the "self" nametype cannot be used, since
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync the name to be updated may differ from the key name.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync This option cannot be used with the <code class="option">-z</code> option.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync<dt><span class="term">-z <em class="replaceable"><code>zone</code></em></span></dt>
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync zone mode: The example <span><strong class="command">named.conf</strong></span> text
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync shows how to set an update policy for the specified
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync using the "zonesub" nametype, allowing updates to all subdomain
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync names within
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync that <em class="replaceable"><code>zone</code></em>.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync This option cannot be used with the <code class="option">-s</code> option.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync<p><span class="citerefentry"><span class="refentrytitle">nsupdate</span>(1)</span>,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <span class="citerefentry"><span class="refentrytitle">named.conf</span>(5)</span>,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <span class="citerefentry"><span class="refentrytitle">named</span>(8)</span>,
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync <em class="citetitle">BIND 9 Administrator Reference Manual</em>.
3194da424708abdd288b28d96892b3a5f3f7df0bvboxsync<p><span class="corpauthor">Internet Systems Consortium</span>
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