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60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - Copyright (C) 2004-2010 Internet Systems Consortium, Inc. ("ISC")
75c0816e8295e180f4bc7f10db3d0d880383bc1cMark Andrews - Copyright (C) 2000-2003 Internet Software Consortium.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - Permission to use, copy, modify, and/or distribute this software for any
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - purpose with or without fee is hereby granted, provided that the above
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - copyright notice and this permission notice appear in all copies.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein - PERFORMANCE OF THIS SOFTWARE.
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<!-- $Id: Bv9ARM.ch08.html,v 1.230 2010/08/17 01:15:37 tbox Exp $ -->
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60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<link rel="prev" href="Bv9ARM.ch07.html" title="Chapter�7.�BIND 9 Security Considerations">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<link rel="next" href="Bv9ARM.ch09.html" title="Appendix�A.�Appendices">
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60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<td width="20%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h2 class="title">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h2></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2601910">Common Problems</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dd><dl><dt><span class="sect2"><a href="Bv9ARM.ch08.html#id2601915">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2601927">Incrementing and Changing the Serial Number</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2601944">Where Can I Get Help?</a></span></dt>
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<div class="titlepage"><div><div><h2 class="title" style="clear: both">
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<a name="id2601910"></a>Common Problems</h2></div></div></div>
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<div class="titlepage"><div><div><h3 class="title">
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<a name="id2601915"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The best solution to solving installation and
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews configuration issues is to take preventative measures by setting
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews up logging files beforehand. The log files provide a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein source of hints and information that can be used to figure out
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein what went wrong and how to fix the problem.
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<div class="titlepage"><div><div><h2 class="title" style="clear: both">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a name="id2601927"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews Zone serial numbers are just numbers — they aren't
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein date related. A lot of people set them to a number that
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein represents a date, usually of the form YYYYMMDDRR.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Occasionally they will make a mistake and set them to a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein "date in the future" then try to correct them by setting
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein them to the "current date". This causes problems because
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein serial numbers are used to indicate that a zone has been
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein updated. If the serial number on the slave server is
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews lower than the serial number on the master, the slave
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein server will attempt to update its copy of the zone.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Setting the serial number to a lower number on the master
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein server than the slave server means that the slave will not perform
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein updates to its copy of the zone.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The solution to this is to add 2147483647 (2^31-1) to the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein number, reload the zone and make sure all slaves have updated to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the new zone serial number, then reset the number to what you want
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein it to be, and reload the zone again.
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<div class="titlepage"><div><div><h2 class="title" style="clear: both">
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<a name="id2601944"></a>Where Can I Get Help?</h2></div></div></div>
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews The Internet Systems Consortium
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews (<acronym class="acronym">ISC</acronym>) offers a wide range
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein levels of premium support are available and each level includes
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein support for all <acronym class="acronym">ISC</acronym> programs,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein significant discounts on products
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein and training, and a recognized priority on bug fixes and
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein support agreement package which includes services ranging from bug
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein fix announcements to remote support. It also includes training in
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein To discuss arrangements for support, contact
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <a href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <acronym class="acronym">ISC</acronym> web page at
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <a href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to read more.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<td width="40%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<td width="40%" align="left" valign="top">Chapter�7.�<acronym class="acronym">BIND</acronym> 9 Security Considerations�</td>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<td width="40%" align="right" valign="top">�Appendix�A.�Appendices</td>