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58fcae4a8816f4a4d87b60a00346d095d085fce7wrowe<hr>
58fcae4a8816f4a4d87b60a00346d095d085fce7wrowe</div>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<div class="refentry" lang="en">
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<a name="man.ddns-confgen"></a><div class="titlepage"></div>
f4fccf7e4d5ffd4dee68759fff0c86a70c402ac1wrowe<div class="refnamediv">
f4fccf7e4d5ffd4dee68759fff0c86a70c402ac1wrowe<h2>Name</h2>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<p><span class="application">ddns-confgen</span> &#8212; ddns key generation tool</p>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick</div>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<div class="refsynopsisdiv">
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<h2>Synopsis</h2>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<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>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick</div>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<div class="refsect1" lang="en">
ecfd3c3dca0f42aae1ad3d27926b602e484a44f5wrowe<a name="id2660005"></a><h2>DESCRIPTION</h2>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<p><span><strong class="command">ddns-confgen</strong></span>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick generates a key for use by <span><strong class="command">nsupdate</strong></span>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick and <span><strong class="command">named</strong></span>. It simplifies configuration
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick of dynamic zones by generating a key and providing the
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick <span><strong class="command">nsupdate</strong></span> and <span><strong class="command">named.conf</strong></span>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick syntax that will be needed to use it, including an example
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick <span><strong class="command">update-policy</strong></span> statement.
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick </p>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<p>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick If a domain name is specified on the command line, it will
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick be used in the name of the generated key and in the sample
58fcae4a8816f4a4d87b60a00346d095d085fce7wrowe <span><strong class="command">named.conf</strong></span> syntax. For example,
58fcae4a8816f4a4d87b60a00346d095d085fce7wrowe <span><strong class="command">ddns-confgen example.com</strong></span> would
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick generate a key called "ddns-key.example.com", and sample
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick <span><strong class="command">named.conf</strong></span> command that could be used
19d8729755d7f4d9503029a628dacbbdabcd2264wrowe in the zone definition for "example.com".
19d8729755d7f4d9503029a628dacbbdabcd2264wrowe </p>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<p>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick Note that <span><strong class="command">named</strong></span> itself can configure a
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick local DDNS key for use with <span><strong class="command">nsupdate -l</strong></span>.
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick <span><strong class="command">ddns-confgen</strong></span> is only needed when a
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick more elaborate configuration is required: for instance, if
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick <span><strong class="command">nsupdate</strong></span> is to be used from a remote system.
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick </p>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick</div>
ecfd3c3dca0f42aae1ad3d27926b602e484a44f5wrowe<div class="refsect1" lang="en">
1f2f357528d122de2c7886a073b4eee8766d5c95wrowe<a name="id2660092"></a><h2>OPTIONS</h2>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<div class="variablelist"><dl>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<dt><span class="term">-a <em class="replaceable"><code>algorithm</code></em></span></dt>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<dd><p>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick Specifies the algorithm to use for the TSIG key. Available
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick choices are: hmac-md5, hmac-sha1, hmac-sha224, hmac-sha256,
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick hmac-sha384 and hmac-sha512. The default is hmac-sha256.
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick </p></dd>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<dt><span class="term">-h</span></dt>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<dd><p>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick Prints a short summary of the options and arguments to
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick <span><strong class="command">ddns-confgen</strong></span>.
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick </p></dd>
38d5ea7a83b07c254bf2b0103053c6b9c8f37d75trawick<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>
Quiet mode: Print only the key, with no explanatory text or
usage examples.
</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>
Single host mode: The example <span><strong class="command">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>
zone mode: The example <span><strong class="command">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="refsect1" lang="en">
<a name="id2660907"></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 class="refsect1" lang="en">
<a name="id2660946"></a><h2>AUTHOR</h2>
<p><span class="corpauthor">Internet Systems Consortium</span>
</p>
</div>
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