Bv9ARM.ch08.html revision 65ad89971ee9973074cd11c207af92bf5440df01
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik - Copyright (C) 2004-2011 Internet Systems Consortium, Inc. ("ISC")
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik - Copyright (C) 2000-2003 Internet Software Consortium.
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik - Permission to use, copy, modify, and/or distribute this software for any
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik - purpose with or without fee is hereby granted, provided that the above
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik - copyright notice and this permission notice appear in all copies.
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik - PERFORMANCE OF THIS SOFTWARE.
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8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr>
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8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<div class="titlepage"><div><div><h2 class="title">
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h2></div></div></div>
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2602533">Common Problems</a></span></dt>
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<dd><dl><dt><span class="sect2"><a href="Bv9ARM.ch08.html#id2602538">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2602550">Incrementing and Changing the Serial Number</a></span></dt>
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2602567">Where Can I Get Help?</a></span></dt>
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<div class="titlepage"><div><div><h2 class="title" style="clear: both">
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<a name="id2602533"></a>Common Problems</h2></div></div></div>
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<div class="titlepage"><div><div><h3 class="title">
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<a name="id2602538"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik The best solution to solving installation and
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik configuration issues is to take preventative measures by setting
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik up logging files beforehand. The log files provide a
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik source of hints and information that can be used to figure out
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik what went wrong and how to fix the problem.
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<div class="titlepage"><div><div><h2 class="title" style="clear: both">
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<a name="id2602550"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik Zone serial numbers are just numbers — they aren't
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik date related. A lot of people set them to a number that
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik represents a date, usually of the form YYYYMMDDRR.
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik Occasionally they will make a mistake and set them to a
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik "date in the future" then try to correct them by setting
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik them to the "current date". This causes problems because
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik serial numbers are used to indicate that a zone has been
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik updated. If the serial number on the slave server is
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik lower than the serial number on the master, the slave
381a9b85cf2c73401fc1bff06c2e0d86389a5e88Jorgen Austvik server will attempt to update its copy of the zone.
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik Setting the serial number to a lower number on the master
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik server than the slave server means that the slave will not perform
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik updates to its copy of the zone.
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik The solution to this is to add 2147483647 (2^31-1) to the
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik number, reload the zone and make sure all slaves have updated to
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik the new zone serial number, then reset the number to what you want
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik it to be, and reload the zone again.
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<div class="titlepage"><div><div><h2 class="title" style="clear: both">
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<a name="id2602567"></a>Where Can I Get Help?</h2></div></div></div>
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik The Internet Systems Consortium
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik (<acronym class="acronym">ISC</acronym>) offers a wide range
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik levels of premium support are available and each level includes
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik support for all <acronym class="acronym">ISC</acronym> programs,
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik significant discounts on products
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik and training, and a recognized priority on bug fixes and
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik support agreement package which includes services ranging from bug
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik fix announcements to remote support. It also includes training in
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik To discuss arrangements for support, contact
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik <a href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik <acronym class="acronym">ISC</acronym> web page at
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik <a href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
381a9b85cf2c73401fc1bff06c2e0d86389a5e88Jorgen Austvik to read more.
71e31fc573ba527f0d2be7929c2cb98037c860ecKnut Anders Hatlen<table width="100%" summary="Navigation footer">
381a9b85cf2c73401fc1bff06c2e0d86389a5e88Jorgen Austvik<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
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8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<td width="40%" align="left" valign="top">Chapter�7.�<acronym class="acronym">BIND</acronym> 9 Security Considerations�</td>
8d22687fbdc540bd0b4d05fd90d87fb6037f4b9fJorgen Austvik<td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td>
381a9b85cf2c73401fc1bff06c2e0d86389a5e88Jorgen Austvik<td width="40%" align="right" valign="top">�Appendix�A.�Appendices</td>