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<title>dnsfunnel: the dnsfunnel-translate program</title>
<meta name="Description" content="dnsfunnel: the dnsfunnel-translate program" />
<meta name="Keywords" content="dnsfunnel translate /etc/resolv.conf nameserver cache address" />
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<p>
<a href="index.html">dnsfunnel</a><br />
<a href="//skarnet.org/software/">Software</a><br />
<a href="//skarnet.org/">skarnet.org</a>
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<h1> The <tt>dnsfunnel-translate</tt> program </h1>
<p>
<tt>dnsfunnel-translate</tt> translates a file in <tt>resolv.conf</tt>
format to a file in <a href="dnsfunneld.html">dnsfunneld</a> format.
</p>
<h2> Interface </h2>
<pre>
dnsfunnel-translate [ -i inputfile ] [ -o outputfile ] [ -x ignoredip ]
</pre>
<ul>
<li> dnsfunnel-translate opens <em>inputfile</em> and parses it. It reads
and processes lines beginning with <tt>nameserver</tt> followed by an IP
address (v4 or v6). It ignores other lines. </li>
<li> It writes the IP addresses, without the <tt>nameserver</tt> keyword,
to <tt>outputfile</tt>, one per line. </li>
<li> If a <tt>nameserver</tt> address is <em>ignoredip</em>, it does not
get printed to <tt>outputfile</tt>
<li> dnsfunnel-translate exits 0 when it has finished processing
<em>inputfile</em>. </li>
</ul>
<h2> Exit codes </h2>
<ul>
<li> 0: success </li>
<li> 1: no suitable IP found in the input file </li>
<li> 100: wrong usage </li>
<li> 111: system call failed </li>
</ul>
<h2> Options </h2>
<ul>
<li> <tt>-i <em>inputfile</em></tt> : process <em>inputfile</em>.
Default is <tt>/etc/resolv.conf</tt>. </li>
<li> <tt>-o <em>outputfile</em></tt> : write the result to
<em>outputfile</em>. Default is <tt>/run/dnsfunnel-caches</tt>, or <em>file</em>
if the <tt>--with-cachelist=<em>file</em></tt> option has been given to the
configure script at build time. </li>
<li> <tt>-x <em>ignoredip</em></tt> : ignore the <em>ignoredip</em>
IPv4 address if it shows up as a <tt>nameserver</tt> in <em>inputfile</em>.
Default is <tt>127.0.0.1</tt>. The point of this option is to avoid copying
to <tt>outputfile</tt> the IPv4 address that the
<a href="dnsfunnel-daemon.html">dnsfunnel-daemon</a> daemon will be bound to. </li>
</ul>
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