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14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync - Copyright (C) 2004-2014 Internet Systems Consortium, Inc. ("ISC")
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync - Copyright (C) 2000-2003 Internet Software Consortium.
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14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync - purpose with or without fee is hereby granted, provided that the above
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14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync - PERFORMANCE OF THIS SOFTWARE.
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14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync<tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr>
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14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h2></div></div></div>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2606710">Common Problems</a></span></dt>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync<dd><dl><dt><span class="sect2"><a href="Bv9ARM.ch08.html#id2606715">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2606727">Incrementing and Changing the Serial Number</a></span></dt>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2606744">Where Can I Get Help?</a></span></dt>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync<div class="titlepage"><div><div><h2 class="title" style="clear: both">
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync<a name="id2606710"></a>Common Problems</h2></div></div></div>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync<a name="id2606715"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync The best solution to solving installation and
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync configuration issues is to take preventative measures by setting
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync up logging files beforehand. The log files provide a
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync source of hints and information that can be used to figure out
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync what went wrong and how to fix the problem.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync<div class="titlepage"><div><div><h2 class="title" style="clear: both">
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync<a name="id2606727"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync Zone serial numbers are just numbers — they aren't
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync date related. A lot of people set them to a number that
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync represents a date, usually of the form YYYYMMDDRR.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync Occasionally they will make a mistake and set them to a
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync "date in the future" then try to correct them by setting
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync them to the "current date". This causes problems because
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync serial numbers are used to indicate that a zone has been
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync updated. If the serial number on the slave server is
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync lower than the serial number on the master, the slave
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync server will attempt to update its copy of the zone.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync Setting the serial number to a lower number on the master
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync server than the slave server means that the slave will not perform
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync updates to its copy of the zone.
14ea49401f3c8c61422aefbda43809e275f60c6cvboxsync The solution to this is to add 2147483647 (2^31-1) to the
of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
<a href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>