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29099c2d04b11e614f1fa399fab9e9162f2788b9vboxsync - Copyright (C) 2004-2015 Internet Systems Consortium, Inc. ("ISC")
29099c2d04b11e614f1fa399fab9e9162f2788b9vboxsync - Copyright (C) 2000-2003 Internet Software Consortium.
29099c2d04b11e614f1fa399fab9e9162f2788b9vboxsync - Permission to use, copy, modify, and/or distribute this software for any
29099c2d04b11e614f1fa399fab9e9162f2788b9vboxsync - purpose with or without fee is hereby granted, provided that the above
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync - copyright notice and this permission notice appear in all copies.
29099c2d04b11e614f1fa399fab9e9162f2788b9vboxsync - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
29099c2d04b11e614f1fa399fab9e9162f2788b9vboxsync - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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29099c2d04b11e614f1fa399fab9e9162f2788b9vboxsync - PERFORMANCE OF THIS SOFTWARE.
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29099c2d04b11e614f1fa399fab9e9162f2788b9vboxsync<link rel="prev" href="Bv9ARM.ch07.html" title="Chapter�7.�BIND 9 Security Considerations">
29099c2d04b11e614f1fa399fab9e9162f2788b9vboxsync<link rel="next" href="Bv9ARM.ch09.html" title="Appendix�A.�Release Notes">
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0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
29099c2d04b11e614f1fa399fab9e9162f2788b9vboxsync<td width="20%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h1></div></div></div>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<dt><span class="section"><a href="Bv9ARM.ch08.html#id-1.9.3">Common Problems</a></span></dt>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<dd><dl><dt><span class="section"><a href="Bv9ARM.ch08.html#id-1.9.3.3">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<dt><span class="section"><a href="Bv9ARM.ch08.html#id-1.9.4">Incrementing and Changing the Serial Number</a></span></dt>
29099c2d04b11e614f1fa399fab9e9162f2788b9vboxsync<dt><span class="section"><a href="Bv9ARM.ch08.html#id-1.9.5">Where Can I Get Help?</a></span></dt>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<div class="titlepage"><div><div><h2 class="title" style="clear: both">
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<a name="id-1.9.3"></a>Common Problems</h2></div></div></div>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<a name="id-1.9.3.3"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync The best solution to solving installation and
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync configuration issues is to take preventative measures by setting
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync up logging files beforehand. The log files provide a
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync source of hints and information that can be used to figure out
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync what went wrong and how to fix the problem.
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<div class="titlepage"><div><div><h2 class="title" style="clear: both">
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<a name="id-1.9.4"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync Zone serial numbers are just numbers — they aren't
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync date related. A lot of people set them to a number that
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync represents a date, usually of the form YYYYMMDDRR.
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync Occasionally they will make a mistake and set them to a
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync "date in the future" then try to correct them by setting
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync them to the "current date". This causes problems because
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync serial numbers are used to indicate that a zone has been
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync updated. If the serial number on the slave server is
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync lower than the serial number on the master, the slave
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync server will attempt to update its copy of the zone.
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync Setting the serial number to a lower number on the master
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync server than the slave server means that the slave will not perform
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync updates to its copy of the zone.
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync The solution to this is to add 2147483647 (2^31-1) to the
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync number, reload the zone and make sure all slaves have updated to
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync the new zone serial number, then reset the number to what you want
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync it to be, and reload the zone again.
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<div class="titlepage"><div><div><h2 class="title" style="clear: both">
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<a name="id-1.9.5"></a>Where Can I Get Help?</h2></div></div></div>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync The Internet Systems Consortium
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync (<acronym class="acronym">ISC</acronym>) offers a wide range
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync levels of premium support are available and each level includes
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync support for all <acronym class="acronym">ISC</acronym> programs,
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync significant discounts on products
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync and training, and a recognized priority on bug fixes and
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync support agreement package which includes services ranging from bug
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync fix announcements to remote support. It also includes training in
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync To discuss arrangements for support, contact
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync <a class="ulink" href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync <a class="ulink" href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync to read more.
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<td width="40%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<td width="40%" align="left" valign="top">Chapter�7.�<acronym class="acronym">BIND</acronym> 9 Security Considerations�</td>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<td width="40%" align="right" valign="top">�Appendix�A.�Release Notes</td>
0c69348b58bb8eabb1bea8867ee932b667bd0d34vboxsync<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.0pre-alpha</p>