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e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer - Copyright (C) 2004-2015 Internet Systems Consortium, Inc. ("ISC")
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer - Copyright (C) 2000-2003 Internet Software Consortium.
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer - Permission to use, copy, modify, and/or distribute this software for any
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer - purpose with or without fee is hereby granted, provided that the above
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer - copyright notice and this permission notice appear in all copies.
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer - PERFORMANCE OF THIS SOFTWARE.
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e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<link rel="prev" href="Bv9ARM.ch07.html" title="Chapter�7.�BIND 9 Security Considerations">
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e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr>
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e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<td width="20%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<div class="titlepage"><div><div><h2 class="title">
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h2></div></div></div>
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2609172">Common Problems</a></span></dt>
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<dd><dl><dt><span class="sect2"><a href="Bv9ARM.ch08.html#id2609177">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2609189">Incrementing and Changing the Serial Number</a></span></dt>
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2609206">Where Can I Get Help?</a></span></dt>
744e50acbaaf22481b25b921b2bc199c8dd4a35cStephen Brooks<div class="titlepage"><div><div><h2 class="title" style="clear: both">
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<a name="id2609172"></a>Common Problems</h2></div></div></div>
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks<div class="titlepage"><div><div><h3 class="title">
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks<a name="id2609177"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks The best solution to solving installation and
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks configuration issues is to take preventative measures by setting
7a0878494fd11b7a861d0b3e2034534c10b5fb46Stephen Brooks up logging files beforehand. The log files provide a
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer source of hints and information that can be used to figure out
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer what went wrong and how to fix the problem.
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<div class="titlepage"><div><div><h2 class="title" style="clear: both">
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<a name="id2609189"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer Zone serial numbers are just numbers — they aren't
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer date related. A lot of people set them to a number that
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer represents a date, usually of the form YYYYMMDDRR.
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer Occasionally they will make a mistake and set them to a
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer "date in the future" then try to correct them by setting
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer them to the "current date". This causes problems because
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer serial numbers are used to indicate that a zone has been
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer updated. If the serial number on the slave server is
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks lower than the serial number on the master, the slave
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks server will attempt to update its copy of the zone.
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks Setting the serial number to a lower number on the master
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks server than the slave server means that the slave will not perform
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks updates to its copy of the zone.
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer The solution to this is to add 2147483647 (2^31-1) to the
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer number, reload the zone and make sure all slaves have updated to
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer the new zone serial number, then reset the number to what you want
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer it to be, and reload the zone again.
7a0878494fd11b7a861d0b3e2034534c10b5fb46Stephen Brooks<div class="titlepage"><div><div><h2 class="title" style="clear: both">
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<a name="id2609206"></a>Where Can I Get Help?</h2></div></div></div>
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer The Internet Systems Consortium
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer (<acronym class="acronym">ISC</acronym>) offers a wide range
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks levels of premium support are available and each level includes
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks support for all <acronym class="acronym">ISC</acronym> programs,
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks significant discounts on products
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks and training, and a recognized priority on bug fixes and
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks support agreement package which includes services ranging from bug
7a0878494fd11b7a861d0b3e2034534c10b5fb46Stephen Brooks fix announcements to remote support. It also includes training in
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
7656b92221e26376547b0dc52b67e7a414ea9775Stephen Brooks To discuss arrangements for support, contact
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer <a href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer <acronym class="acronym">ISC</acronym> web page at
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer <a href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer to read more.
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e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<td width="40%" align="left" valign="top">Chapter�7.�<acronym class="acronym">BIND</acronym> 9 Security Considerations�</td>
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e4f5a11d4a234623168c1558fcdf4341e11769e1James Kremer<td width="40%" align="right" valign="top">�Appendix�A.�Release Notes</td>
7a0878494fd11b7a861d0b3e2034534c10b5fb46Stephen Brooks<p style="text-align: center;">BIND 9.11.0pre-alpha</p>