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c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts</td>
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8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<div class="refentry">
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<a name="man.rndc"></a><div class="titlepage"></div>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<div class="refnamediv">
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<h2>Name</h2>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford<p><span class="application">rndc</span> &#8212; name server control utility</p>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford</div>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford<div class="refsynopsisdiv">
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford<h2>Synopsis</h2>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford<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">-q</code>] [<code class="option">-r</code>] [<code class="option">-V</code>] [<code class="option">-y <em class="replaceable"><code>key_id</code></em></code>] {command}</p></div>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster</div>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<div class="refsection">
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford<a name="id-1.14.23.7"></a><h2>DESCRIPTION</h2>
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts<p><span class="command"><strong>rndc</strong></span>
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts controls the operation of a name
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts server. It supersedes the <span class="command"><strong>ndc</strong></span> utility
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts that was provided in old BIND releases. If
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts <span class="command"><strong>rndc</strong></span> is invoked with no command line
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts options or arguments, it prints a short summary of the
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts supported commands and the available options and their
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts arguments.
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts </p>
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts<p><span class="command"><strong>rndc</strong></span>
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts communicates with the name server over a TCP connection, sending
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts commands authenticated with digital signatures. In the current
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts versions of
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts <span class="command"><strong>rndc</strong></span> and <span class="command"><strong>named</strong></span>,
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts the only supported authentication algorithms are HMAC-MD5
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster (for compatibility), HMAC-SHA1, HMAC-SHA224, HMAC-SHA256
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster (default), HMAC-SHA384 and HMAC-SHA512.
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford They use a shared secret on each end of the connection.
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts This provides TSIG-style authentication for the command
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts request and the name server's response. All commands sent
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts over the channel must be signed by a key_id known to the
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts server.
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts </p>
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts<p><span class="command"><strong>rndc</strong></span>
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts reads a configuration file to
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts determine how to contact the name server and decide what
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts algorithm and key it should use.
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts </p>
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts</div>
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts<div class="refsection">
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts<a name="id-1.14.23.8"></a><h2>OPTIONS</h2>
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts<div class="variablelist"><dl class="variablelist">
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts<dt><span class="term">-b <em class="replaceable"><code>source-address</code></em></span></dt>
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts<dd><p>
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts Use <em class="replaceable"><code>source-address</code></em>
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts as the source address for the connection to the server.
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts Multiple instances are permitted to allow setting of both
c9ba1a8f3afcf43e26fe5b062ac652b347b283fbJames Phillpotts the IPv4 and IPv6 source addresses.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p></dd>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dt><span class="term">-c <em class="replaceable"><code>config-file</code></em></span></dt>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dd><p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster Use <em class="replaceable"><code>config-file</code></em>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster as the configuration file instead of the default,
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster <code class="filename">/etc/rndc.conf</code>.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p></dd>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dt><span class="term">-k <em class="replaceable"><code>key-file</code></em></span></dt>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dd><p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster Use <em class="replaceable"><code>key-file</code></em>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster as the key file instead of the default,
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster <code class="filename">/etc/rndc.key</code>. The key in
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster <code class="filename">/etc/rndc.key</code> will be used to
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster authenticate
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster commands sent to the server if the <em class="replaceable"><code>config-file</code></em>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster does not exist.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p></dd>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dt><span class="term">-s <em class="replaceable"><code>server</code></em></span></dt>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dd><p><em class="replaceable"><code>server</code></em> is
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster the name or address of the server which matches a
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster server statement in the configuration file for
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster <span class="command"><strong>rndc</strong></span>. If no server is supplied on the
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster command line, the host named by the default-server clause
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster in the options statement of the <span class="command"><strong>rndc</strong></span>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster configuration file will be used.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p></dd>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dt><span class="term">-p <em class="replaceable"><code>port</code></em></span></dt>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dd><p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster Send commands to TCP port
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster <em class="replaceable"><code>port</code></em>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster instead
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster of BIND 9's default control channel port, 953.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p></dd>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dt><span class="term">-q</span></dt>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dd><p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster Quiet mode: Message text returned by the server
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster will not be printed except when there is an error.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p></dd>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dt><span class="term">-r</span></dt>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dd><p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster Instructs <span class="command"><strong>rndc</strong></span> to print the result code
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster returned by <span class="command"><strong>named</strong></span> after executing the
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford requested command (e.g., ISC_R_SUCCESS, ISC_R_FAILURE, etc).
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford </p></dd>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford<dt><span class="term">-V</span></dt>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford<dd><p>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford Enable verbose logging.
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford </p></dd>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford<dt><span class="term">-y <em class="replaceable"><code>key_id</code></em></span></dt>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford<dd><p>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford Use the key <em class="replaceable"><code>key_id</code></em>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford from the configuration file.
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford <em class="replaceable"><code>key_id</code></em>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford must be
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford known by <span class="command"><strong>named</strong></span> with the same algorithm and secret string
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford in order for control message validation to succeed.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster If no <em class="replaceable"><code>key_id</code></em>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster is specified, <span class="command"><strong>rndc</strong></span> will first look
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford for a key clause in the server statement of the server
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster being used, or if no server statement is present for that
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster host, then the default-key clause of the options statement.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster Note that the configuration file contains shared secrets
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster which are used to send authenticated control commands
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster to name servers. It should therefore not have general read
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster or write access.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p></dd>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster</dl></div>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster</div>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<div class="refsection">
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<a name="id-1.14.23.9"></a><h2>COMMANDS</h2>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster A list of commands supported by <span class="command"><strong>rndc</strong></span> can
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster be seen by running <span class="command"><strong>rndc</strong></span> without arguments.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster Currently supported commands are:
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<div class="variablelist"><dl class="variablelist">
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dt><span class="term"><strong class="userinput"><code>addzone <em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>] <em class="replaceable"><code>configuration</code></em> </code></strong></span></dt>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dd>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster Add a zone while the server is running. This
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster command requires the
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster <span class="command"><strong>allow-new-zones</strong></span> option to be set
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster to <strong class="userinput"><code>yes</code></strong>. The
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster <em class="replaceable"><code>configuration</code></em> string
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster specified on the command line is the zone
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster configuration text that would ordinarily be
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster placed in <code class="filename">named.conf</code>.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster The configuration is saved in a file called
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster <code class="filename"><em class="replaceable"><code>name</code></em>.nzf</code>,
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster where <em class="replaceable"><code>name</code></em> is the
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster name of the view, or if it contains characters
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster that are incompatible with use as a file name, a
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster cryptographic hash generated from the name
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster of the view.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster When <span class="command"><strong>named</strong></span> is
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster restarted, the file will be loaded into the view
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster configuration, so that zones that were added
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster can persist after a restart.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster This sample <span class="command"><strong>addzone</strong></span> command
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster would add the zone <code class="literal">example.com</code>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster to the default view:
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<code class="prompt">$ </code><strong class="userinput"><code>rndc addzone example.com '{ type master; file "example.com.db"; };'</code></strong>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster (Note the brackets and semi-colon around the zone
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster configuration text.)
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<p>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford See also <span class="command"><strong>rndc delzone</strong></span> and <span class="command"><strong>rndc modzone</strong></span>.
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster </p>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford</dd>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dt><span class="term"><strong class="userinput"><code>delzone [<span class="optional">-clean</span>] <em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>] </code></strong></span></dt>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<dd>
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford<p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster Delete a zone while the server is running.
c42550c0e86e2c3f821f5e754ea8ba52d8bb5427Tony Bamford </p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster<p>
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster If the <code class="option">-clean</code> argument is specified,
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster the zone's master file (and journal file, if any)
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster will be deleted along with the zone. Without the
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster <code class="option">-clean</code> option, zone files must
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster be cleaned up by hand. (If the zone is of
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster type "slave" or "stub", the files needing to
8af80418ba1ec431c8027fa9668e5678658d3611Allan Foster be cleaned up will be reported in the output
of the <span class="command"><strong>rndc delzone</strong></span> command.)
</p>
<p>
If the zone was originally added via
<span class="command"><strong>rndc addzone</strong></span>, then it will be
removed permanently. However, if it was originally
configured in <code class="filename">named.conf</code>, then
that original configuration is still in place; when
the server is restarted or reconfigured, the zone will
come back. To remove it permanently, it must also be
removed from <code class="filename">named.conf</code>
</p>
<p>
See also <span class="command"><strong>rndc addzone</strong></span> and <span class="command"><strong>rndc modzone</strong></span>.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>dnstap ( -reopen | -roll [<span class="optional"><em class="replaceable"><code>number</code></em></span>] )</code></strong></span></dt>
<dd><p>
Close and re-open DNSTAP output files.
<span class="command"><strong>rndc dnstap -reopen</strong></span> allows the output
file to be renamed externally, then re-opened.
<span class="command"><strong>rndc dnstap -roll</strong></span> causes the output file
to be rolled automatically, similar to log files; the most
recent output file has ".0" appended to its name; the
previous most recent output file is moved to ".1", and so on.
If <em class="replaceable"><code>number</code></em> is specified, then the
number of backup log files is limited to that number.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>dumpdb [<span class="optional">-all|-cache|-zone|-adb|-bad|-fail</span>] [<span class="optional"><em class="replaceable"><code>view ...</code></em></span>]</code></strong></span></dt>
<dd><p>
Dump the server's caches (default) and/or zones to
the
dump file for the specified views. If no view is
specified, all
views are dumped.
(See the <span class="command"><strong>dump-file</strong></span> option in
the BIND 9 Administrator Reference Manual.)
</p></dd>
<dt><span class="term"><strong class="userinput"><code>flush</code></strong></span></dt>
<dd><p>
Flushes the server's cache.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>flushname</code></strong> <em class="replaceable"><code>name</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>] </span></dt>
<dd><p>
Flushes the given name from the view's DNS cache
and, if applicable, from the view's nameserver address
database, bad server cache and SERVFAIL cache.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>flushtree</code></strong> <em class="replaceable"><code>name</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>] </span></dt>
<dd><p>
Flushes the given name, and all of its subdomains,
from the view's DNS cache, address database,
bad server cache, and SERVFAIL cache.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>freeze [<span class="optional"><em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>]</span>]</code></strong></span></dt>
<dd>
<p>
Suspend updates to a dynamic zone. If no zone is
specified, then all zones are suspended. This allows
manual edits to be made to a zone normally updated by
dynamic update. It also causes changes in the
journal file to be synced into the master file.
All dynamic update attempts will be refused while
the zone is frozen.
</p>
<p>
See also <span class="command"><strong>rndc thaw</strong></span>.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>halt [<span class="optional">-p</span>]</code></strong></span></dt>
<dd>
<p>
Stop the server immediately. Recent changes
made through dynamic update or IXFR are not saved to
the master files, but will be rolled forward from the
journal files when the server is restarted.
If <code class="option">-p</code> is specified <span class="command"><strong>named</strong></span>'s process id is returned.
This allows an external process to determine when <span class="command"><strong>named</strong></span>
had completed halting.
</p>
<p>
See also <span class="command"><strong>rndc stop</strong></span>.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>loadkeys <em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>]</code></strong></span></dt>
<dd>
<p>
Fetch all DNSSEC keys for the given zone
from the key directory. If they are within
their publication period, merge them into the
zone's DNSKEY RRset. Unlike <span class="command"><strong>rndc
sign</strong></span>, however, the zone is not
immediately re-signed by the new keys, but is
allowed to incrementally re-sign over time.
</p>
<p>
This command requires that the
<span class="command"><strong>auto-dnssec</strong></span> zone option
be set to <code class="literal">maintain</code>,
and also requires the zone to be configured to
allow dynamic DNS.
(See "Dynamic Update Policies" in the Administrator
Reference Manual for more details.)
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>managed-keys <em class="replaceable"><code>(status | refresh | sync)</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>]</code></strong></span></dt>
<dd><p>
When run with the "status" keyword, print the current
status of the managed-keys database for the specified
view, or for all views if none is specified. When run
with the "refresh" keyword, force an immediate refresh
of all the managed-keys in the specified view, or all
views. When run with the "sync" keyword, force an
immediate dump of the managed-keys database to disk (in
the file <code class="filename">managed-keys.bind</code> or
(<code class="filename"><em class="replaceable"><code>viewname</code></em>.mkeys</code>).
</p></dd>
<dt><span class="term"><strong class="userinput"><code>modzone <em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>] <em class="replaceable"><code>configuration</code></em> </code></strong></span></dt>
<dd>
<p>
Modify the configuration of a zone while the server
is running. This command requires the
<span class="command"><strong>allow-new-zones</strong></span> option to be
set to <strong class="userinput"><code>yes</code></strong>. As with
<span class="command"><strong>addzone</strong></span>, the
<em class="replaceable"><code>configuration</code></em> string
specified on the command line is the zone
configuration text that would ordinarily be
placed in <code class="filename">named.conf</code>.
</p>
<p>
If the zone was originally added via
<span class="command"><strong>rndc addzone</strong></span>, the configuration
changes will be recorded permanently and will still be
in effect after the server is restarted or reconfigured.
However, if it was originally configured in
<code class="filename">named.conf</code>, then that original
configuration is still in place; when the server is
restarted or reconfigured, the zone will revert to
its original configuration. To make the changes
permanent, it must also be modified in
<code class="filename">named.conf</code>
</p>
<p>
See also <span class="command"><strong>rndc addzone</strong></span> and <span class="command"><strong>rndc delzone</strong></span>.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>notify <em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>]</code></strong></span></dt>
<dd><p>
Resend NOTIFY messages for the zone.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>notrace</code></strong></span></dt>
<dd>
<p>
Sets the server's debugging level to 0.
</p>
<p>
See also <span class="command"><strong>rndc trace</strong></span>.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>nta
[<span class="optional">( -d | -f | -r | -l <em class="replaceable"><code>duration</code></em>)</span>]
<em class="replaceable"><code>domain</code></em>
[<span class="optional"><em class="replaceable"><code>view</code></em></span>]
</code></strong></span></dt>
<dd>
<p>
Sets a DNSSEC negative trust anchor (NTA)
for <code class="option">domain</code>, with a lifetime of
<code class="option">duration</code>. The default lifetime is
configured in <code class="filename">named.conf</code> via the
<code class="option">nta-lifetime</code> option, and defaults to
one hour. The lifetime cannot exceed one week.
</p>
<p>
A negative trust anchor selectively disables
DNSSEC validation for zones that are known to be
failing because of misconfiguration rather than
an attack. When data to be validated is
at or below an active NTA (and above any other
configured trust anchors), <span class="command"><strong>named</strong></span> will
abort the DNSSEC validation process and treat the data as
insecure rather than bogus. This continues until the
NTA's lifetime is elapsed.
</p>
<p>
NTAs persist across restarts of the <span class="command"><strong>named</strong></span> server.
The NTAs for a view are saved in a file called
<code class="filename"><em class="replaceable"><code>name</code></em>.nta</code>,
where <em class="replaceable"><code>name</code></em> is the
name of the view, or if it contains characters
that are incompatible with use as a file name, a
cryptographic hash generated from the name
of the view.
</p>
<p>
An existing NTA can be removed by using the
<code class="option">-remove</code> option.
</p>
<p>
An NTA's lifetime can be specified with the
<code class="option">-lifetime</code> option. TTL-style
suffixes can be used to specify the lifetime in
seconds, minutes, or hours. If the specified NTA
already exists, its lifetime will be updated to the
new value. Setting <code class="option">lifetime</code> to zero
is equivalent to <code class="option">-remove</code>.
</p>
<p>
If <code class="option">-dump</code> is used, any other arguments
are ignored, and a list of existing NTAs is printed
(note that this may include NTAs that are expired but
have not yet been cleaned up).
</p>
<p>
Normally, <span class="command"><strong>named</strong></span> will periodically
test to see whether data below an NTA can now be
validated (see the <code class="option">nta-recheck</code> option
in the Administrator Reference Manual for details).
If data can be validated, then the NTA is regarded as
no longer necessary, and will be allowed to expire
early. The <code class="option">-force</code> overrides this
behavior and forces an NTA to persist for its entire
lifetime, regardless of whether data could be
validated if the NTA were not present.
</p>
<p>
All of these options can be shortened, i.e., to
<code class="option">-l</code>, <code class="option">-r</code>, <code class="option">-d</code>,
and <code class="option">-f</code>.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>querylog</code></strong> [<span class="optional">on|off</span>] </span></dt>
<dd>
<p>
Enable or disable query logging. (For backward
compatibility, this command can also be used without
an argument to toggle query logging on and off.)
</p>
<p>
Query logging can also be enabled
by explicitly directing the <span class="command"><strong>queries</strong></span>
<span class="command"><strong>category</strong></span> to a
<span class="command"><strong>channel</strong></span> in the
<span class="command"><strong>logging</strong></span> section of
<code class="filename">named.conf</code> or by specifying
<span class="command"><strong>querylog yes;</strong></span> in the
<span class="command"><strong>options</strong></span> section of
<code class="filename">named.conf</code>.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>reconfig</code></strong></span></dt>
<dd><p>
Reload the configuration file and load new zones,
but do not reload existing zone files even if they
have changed.
This is faster than a full <span class="command"><strong>reload</strong></span> when there
is a large number of zones because it avoids the need
to examine the
modification times of the zones files.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>recursing</code></strong></span></dt>
<dd><p>
Dump the list of queries <span class="command"><strong>named</strong></span> is currently
recursing on, and the list of domains to which iterative
queries are currently being sent. (The second list includes
the number of fetches currently active for the given domain,
and how many have been passed or dropped because of the
<code class="option">fetches-per-zone</code> option.)
</p></dd>
<dt><span class="term"><strong class="userinput"><code>refresh <em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>]</code></strong></span></dt>
<dd><p>
Schedule zone maintenance for the given zone.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>reload</code></strong></span></dt>
<dd><p>
Reload configuration file and zones.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>reload <em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>]</code></strong></span></dt>
<dd><p>
Reload the given zone.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>retransfer <em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>]</code></strong></span></dt>
<dd>
<p>
Retransfer the given slave zone from the master server.
</p>
<p>
If the zone is configured to use
<span class="command"><strong>inline-signing</strong></span>, the signed
version of the zone is discarded; after the
retransfer of the unsigned version is complete, the
signed version will be regenerated with all new
signatures.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>scan</code></strong></span></dt>
<dd><p>
Scan the list of available network interfaces
for changes, without performing a full
<span class="command"><strong>reconfig</strong></span> or waiting for the
<span class="command"><strong>interface-interval</strong></span> timer.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>secroots [<span class="optional">-</span>] [<span class="optional"><em class="replaceable"><code>view ...</code></em></span>]</code></strong></span></dt>
<dd>
<p>
Dump the server's security roots and negative trust anchors
for the specified views. If no view is specified, all views
are dumped.
</p>
<p>
If the first argument is "-", then the output is
returned via the <span class="command"><strong>rndc</strong></span> response channel
and printed to the standard output.
Otherwise, it is written to the secroots dump file, which
defaults to <code class="filename">named.secroots</code>, but can be
overridden via the <code class="option">secroots-file</code> option in
<code class="filename">named.conf</code>.
</p>
<p>
See also <span class="command"><strong>rndc managed-keys</strong></span>.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>showzone <em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>] </code></strong></span></dt>
<dd>
<p>
Print the configuration of a running zone.
</p>
<p>
See also <span class="command"><strong>rndc zonestatus</strong></span>.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>sign <em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>]</code></strong></span></dt>
<dd>
<p>
Fetch all DNSSEC keys for the given zone
from the key directory (see the
<span class="command"><strong>key-directory</strong></span> option in
the BIND 9 Administrator Reference Manual). If they are within
their publication period, merge them into the
zone's DNSKEY RRset. If the DNSKEY RRset
is changed, then the zone is automatically
re-signed with the new key set.
</p>
<p>
This command requires that the
<span class="command"><strong>auto-dnssec</strong></span> zone option be set
to <code class="literal">allow</code> or
<code class="literal">maintain</code>,
and also requires the zone to be configured to
allow dynamic DNS.
(See "Dynamic Update Policies" in the Administrator
Reference Manual for more details.)
</p>
<p>
See also <span class="command"><strong>rndc loadkeys</strong></span>.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>signing [<span class="optional">( -list | -clear <em class="replaceable"><code>keyid/algorithm</code></em> | -clear <code class="literal">all</code> | -nsec3param ( <em class="replaceable"><code>parameters</code></em> | <code class="literal">none</code> ) | -serial <em class="replaceable"><code>value</code></em> ) </span>] <em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>] </code></strong></span></dt>
<dd>
<p>
List, edit, or remove the DNSSEC signing state records
for the specified zone. The status of ongoing DNSSEC
operations (such as signing or generating
NSEC3 chains) is stored in the zone in the form
of DNS resource records of type
<span class="command"><strong>sig-signing-type</strong></span>.
<span class="command"><strong>rndc signing -list</strong></span> converts
these records into a human-readable form,
indicating which keys are currently signing
or have finished signing the zone, and which NSEC3
chains are being created or removed.
</p>
<p>
<span class="command"><strong>rndc signing -clear</strong></span> can remove
a single key (specified in the same format that
<span class="command"><strong>rndc signing -list</strong></span> uses to
display it), or all keys. In either case, only
completed keys are removed; any record indicating
that a key has not yet finished signing the zone
will be retained.
</p>
<p>
<span class="command"><strong>rndc signing -nsec3param</strong></span> sets
the NSEC3 parameters for a zone. This is the
only supported mechanism for using NSEC3 with
<span class="command"><strong>inline-signing</strong></span> zones.
Parameters are specified in the same format as
an NSEC3PARAM resource record: hash algorithm,
flags, iterations, and salt, in that order.
</p>
<p>
Currently, the only defined value for hash algorithm
is <code class="literal">1</code>, representing SHA-1.
The <code class="option">flags</code> may be set to
<code class="literal">0</code> or <code class="literal">1</code>,
depending on whether you wish to set the opt-out
bit in the NSEC3 chain. <code class="option">iterations</code>
defines the number of additional times to apply
the algorithm when generating an NSEC3 hash. The
<code class="option">salt</code> is a string of data expressed
in hexadecimal, a hyphen (`-') if no salt is
to be used, or the keyword <code class="literal">auto</code>,
which causes <span class="command"><strong>named</strong></span> to generate a
random 64-bit salt.
</p>
<p>
So, for example, to create an NSEC3 chain using
the SHA-1 hash algorithm, no opt-out flag,
10 iterations, and a salt value of "FFFF", use:
<span class="command"><strong>rndc signing -nsec3param 1 0 10 FFFF <em class="replaceable"><code>zone</code></em></strong></span>.
To set the opt-out flag, 15 iterations, and no
salt, use:
<span class="command"><strong>rndc signing -nsec3param 1 1 15 - <em class="replaceable"><code>zone</code></em></strong></span>.
</p>
<p>
<span class="command"><strong>rndc signing -nsec3param none</strong></span>
removes an existing NSEC3 chain and replaces it
with NSEC.
</p>
<p>
<span class="command"><strong>rndc signing -serial value</strong></span> sets
the serial number of the zone to value. If the value
would cause the serial number to go backwards it will
be rejected. The primary use is to set the serial on
inline signed zones.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>stats</code></strong></span></dt>
<dd><p>
Write server statistics to the statistics file.
(See the <span class="command"><strong>statistics-file</strong></span> option in
the BIND 9 Administrator Reference Manual.)
</p></dd>
<dt><span class="term"><strong class="userinput"><code>status</code></strong></span></dt>
<dd><p>
Display status of the server.
Note that the number of zones includes the internal <span class="command"><strong>bind/CH</strong></span> zone
and the default <span class="command"><strong>/IN</strong></span>
hint zone if there is not an
explicit root zone configured.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>stop [<span class="optional">-p</span>]</code></strong></span></dt>
<dd>
<p>
Stop the server, making sure any recent changes
made through dynamic update or IXFR are first saved to
the master files of the updated zones.
If <code class="option">-p</code> is specified <span class="command"><strong>named</strong></span>'s process id is returned.
This allows an external process to determine when <span class="command"><strong>named</strong></span>
had completed stopping.
</p>
<p>See also <span class="command"><strong>rndc halt</strong></span>.</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>sync [<span class="optional">-clean</span>] [<span class="optional"><em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>]</span>]</code></strong></span></dt>
<dd><p>
Sync changes in the journal file for a dynamic zone
to the master file. If the "-clean" option is
specified, the journal file is also removed. If
no zone is specified, then all zones are synced.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>thaw [<span class="optional"><em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>]</span>]</code></strong></span></dt>
<dd>
<p>
Enable updates to a frozen dynamic zone. If no
zone is specified, then all frozen zones are
enabled. This causes the server to reload the zone
from disk, and re-enables dynamic updates after the
load has completed. After a zone is thawed,
dynamic updates will no longer be refused. If
the zone has changed and the
<span class="command"><strong>ixfr-from-differences</strong></span> option is
in use, then the journal file will be updated to
reflect changes in the zone. Otherwise, if the
zone has changed, any existing journal file will be
removed.
</p>
<p>See also <span class="command"><strong>rndc freeze</strong></span>.</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>trace</code></strong></span></dt>
<dd><p>
Increment the servers debugging level by one.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>trace <em class="replaceable"><code>level</code></em></code></strong></span></dt>
<dd>
<p>
Sets the server's debugging level to an explicit
value.
</p>
<p>
See also <span class="command"><strong>rndc notrace</strong></span>.
</p>
</dd>
<dt><span class="term"><strong class="userinput"><code>tsig-delete</code></strong> <em class="replaceable"><code>keyname</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span></dt>
<dd><p>
Delete a given TKEY-negotiated key from the server.
(This does not apply to statically configured TSIG
keys.)
</p></dd>
<dt><span class="term"><strong class="userinput"><code>tsig-list</code></strong></span></dt>
<dd><p>
List the names of all TSIG keys currently configured
for use by <span class="command"><strong>named</strong></span> in each view. The
list both statically configured keys and dynamic
TKEY-negotiated keys.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>validation ( on | off | check ) [<span class="optional"><em class="replaceable"><code>view ...</code></em></span>] </code></strong></span></dt>
<dd><p>
Enable, disable, or check the current status of
DNSSEC validation.
Note <span class="command"><strong>dnssec-enable</strong></span> also needs to be
set to <strong class="userinput"><code>yes</code></strong> or
<strong class="userinput"><code>auto</code></strong> to be effective.
It defaults to enabled.
</p></dd>
<dt><span class="term"><strong class="userinput"><code>zonestatus <em class="replaceable"><code>zone</code></em> [<span class="optional"><em class="replaceable"><code>class</code></em> [<span class="optional"><em class="replaceable"><code>view</code></em></span>]</span>]</code></strong></span></dt>
<dd>
<p>
Displays the current status of the given zone,
including the master file name and any include
files from which it was loaded, when it was most
recently loaded, the current serial number, the
number of nodes, whether the zone supports
dynamic updates, whether the zone is DNSSEC
signed, whether it uses automatic DNSSEC key
management or inline signing, and the scheduled
refresh or expiry times for the zone.
</p>
<p>
See also <span class="command"><strong>rndc showzone</strong></span>.
</p>
</dd>
</dl></div>
</div>
<div class="refsection">
<a name="id-1.14.23.10"></a><h2>LIMITATIONS</h2>
<p>
There is currently no way to provide the shared secret for a
<code class="option">key_id</code> without using the configuration file.
</p>
<p>
Several error messages could be clearer.
</p>
</div>
<div class="refsection">
<a name="id-1.14.23.11"></a><h2>SEE ALSO</h2>
<p><span class="citerefentry"><span class="refentrytitle">rndc.conf</span>(5)</span>,
<span class="citerefentry"><span class="refentrytitle">rndc-confgen</span>(8)</span>,
<span class="citerefentry"><span class="refentrytitle">named</span>(8)</span>,
<span class="citerefentry"><span class="refentrytitle">named.conf</span>(5)</span>,
<span class="citerefentry"><span class="refentrytitle">ndc</span>(8)</span>,
<em class="citetitle">BIND 9 Administrator Reference Manual</em>.
</p>
</div>
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