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<title>CheckResolv</title>
<meta name="keywords" content="resolver, BIND, DNS, resolv.conf">
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<h1>CheckResolv</h1>
<p>
This is a <i>quick'n'dirty</i> tool for checking the configuration
of your local resolver and/or DNS configuration. See the
included manpage and source code for more explanations.
</p>
<h2>options</h2>
<dl> <dt>-V <dd>display version number and exit.
<dt>-h <dd>brief help on the command-line options.
<dt>-v <dd>display various useless messages.
<dt>-r <dd>do reverse lookup on IP address discovered.
<dt>-e <dd>show content of a few environment var resolver-related.
<dt>-t <dd>compute elapsed time of operation, not really accurate.
</dl>
<hr>
<p>
This software use only basic functions like <i>gethostbyname(3)</i>
or <i>gethostbyaddr(3)</i>. Checkresolv use the more low-level
of the resolver galaxy, so it works like any "lambda"
application. Really nice when you have to catch a mysterious
failure in a <small>LAMBDA</small> software.
</p>
<p>
The environmemt variable <tt>CHECKRESOLV</tt> control the verbosity.
A value of <tt>tech</tt> add the display of reverse lookup and timings.
And setting to <tt>all</tt> give you all the bells'n'whistles needed
by geeks.
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