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98N/A<title>Chapter�8.�Troubleshooting</title>
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210N/A<tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr>
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98N/A<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
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98N/A<div class="chapter" lang="en">
98N/A<div class="titlepage"><div><div><h2 class="title">
98N/A<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h2></div></div></div>
151N/A<div class="toc">
137N/A<p><b>Table of Contents</b></p>
153N/A<dl>
210N/A<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2593476">Common Problems</a></span></dt>
98N/A<dd><dl><dt><span class="sect2"><a href="Bv9ARM.ch08.html#id2593481">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
179N/A<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2593493">Incrementing and Changing the Serial Number</a></span></dt>
126N/A<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2593510">Where Can I Get Help?</a></span></dt>
98N/A</dl>
98N/A</div>
98N/A<div class="sect1" lang="en">
123N/A<div class="titlepage"><div><div><h2 class="title" style="clear: both">
98N/A<a name="id2593476"></a>Common Problems</h2></div></div></div>
98N/A<div class="sect2" lang="en">
98N/A<div class="titlepage"><div><div><h3 class="title">
98N/A<a name="id2593481"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
98N/A<p>
98N/A The best solution to solving installation and
98N/A configuration issues is to take preventative measures by setting
98N/A up logging files beforehand. The log files provide a
98N/A source of hints and information that can be used to figure out
98N/A what went wrong and how to fix the problem.
98N/A </p>
98N/A</div>
156N/A</div>
156N/A<div class="sect1" lang="en">
98N/A<div class="titlepage"><div><div><h2 class="title" style="clear: both">
98N/A<a name="id2593493"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
98N/A<p>
98N/A Zone serial numbers are just numbers &#8212; they aren't date
98N/A related. A lot of people set them to a number that represents a
98N/A date, usually of the form YYYYMMDDRR. A number of people
98N/A tested these numbers for Y2K compliance and set the number
98N/A to the year 2000 to see if it would work. They then tried to restore
98N/A the old serial number. This caused problems because serial
98N/A numbers are used to indicate that a zone has been updated. If the
98N/A serial number on the slave server is lower than the serial number
98N/A on the master, the slave server will attempt to update its copy of
98N/A the zone.
98N/A </p>
98N/A<p>
98N/A Setting the serial number to a lower number on the master
98N/A server than the slave server means that the slave will not perform
98N/A updates to its copy of the zone.
98N/A </p>
98N/A<p>
98N/A The solution to this is to add 2147483647 (2^31-1) to the
98N/A number, reload the zone and make sure all slaves have updated to
the new zone serial number, then reset the number to what you want
it to be, and reload the zone again.
</p>
</div>
<div class="sect1" lang="en">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="id2593510"></a>Where Can I Get Help?</h2></div></div></div>
<p>
The Internet Systems Consortium
(<acronym class="acronym">ISC</acronym>) offers a wide range
of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
levels of premium support are available and each level includes
support for all <acronym class="acronym">ISC</acronym> programs,
significant discounts on products
and training, and a recognized priority on bug fixes and
non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard
support agreement package which includes services ranging from bug
fix announcements to remote support. It also includes training in
<acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
</p>
<p>
To discuss arrangements for support, contact
<a href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
<acronym class="acronym">ISC</acronym> web page at
<a href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
to read more.
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