d6fa26d0adaec6c910115be34fe7a5a5f402c14fMark Andrews<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
71cef386fae61275b03e203825680b39fedaa8c6Tinderbox User - Copyright (C) 2000-2018 Internet Systems Consortium, Inc. ("ISC")
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14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt<link rel="home" href="Bv9ARM.html" title="BIND 9 Administrator Reference Manual">
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60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<link rel="prev" href="Bv9ARM.ch07.html" title="Chapter�7.�BIND 9 Security Considerations">
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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>
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fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User<div class="titlepage"><div><div><h1 class="title">
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h1></div></div></div>
af40ebed6257e4ac1996144530b3de317cf4da11Tinderbox User<dt><span class="section"><a href="Bv9ARM.ch08.html#common_problems">Common Problems</a></span></dt>
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User<dd><dl><dt><span class="section"><a href="Bv9ARM.ch08.html#id-1.9.2.2">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User<dt><span class="section"><a href="Bv9ARM.ch08.html#id-1.9.3">Incrementing and Changing the Serial Number</a></span></dt>
af40ebed6257e4ac1996144530b3de317cf4da11Tinderbox User<dt><span class="section"><a href="Bv9ARM.ch08.html#more_help">Where Can I Get Help?</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h2 class="title" style="clear: both">
af40ebed6257e4ac1996144530b3de317cf4da11Tinderbox User<a name="common_problems"></a>Common Problems</h2></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User<a name="id-1.9.2.2"></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
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein configuration issues is to take preventative measures by setting
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein 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.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h2 class="title" style="clear: both">
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User<a name="id-1.9.3"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
48abcd3eb789fdd24a2e0a6155b25e6979a39ae0Mark Andrews Zone serial numbers are just numbers — they aren't
48abcd3eb789fdd24a2e0a6155b25e6979a39ae0Mark Andrews date related. A lot of people set them to a number that
48abcd3eb789fdd24a2e0a6155b25e6979a39ae0Mark Andrews represents a date, usually of the form YYYYMMDDRR.
48abcd3eb789fdd24a2e0a6155b25e6979a39ae0Mark Andrews Occasionally they will make a mistake and set them to a
48abcd3eb789fdd24a2e0a6155b25e6979a39ae0Mark Andrews "date in the future" then try to correct them by setting
48abcd3eb789fdd24a2e0a6155b25e6979a39ae0Mark Andrews them to the "current date". This causes problems because
48abcd3eb789fdd24a2e0a6155b25e6979a39ae0Mark Andrews serial numbers are used to indicate that a zone has been
48abcd3eb789fdd24a2e0a6155b25e6979a39ae0Mark Andrews updated. If the serial number on the slave server is
48abcd3eb789fdd24a2e0a6155b25e6979a39ae0Mark Andrews lower than the serial number on the master, the slave
48abcd3eb789fdd24a2e0a6155b25e6979a39ae0Mark Andrews 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.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h2 class="title" style="clear: both">
af40ebed6257e4ac1996144530b3de317cf4da11Tinderbox User<a name="more_help"></a>Where Can I Get Help?</h2></div></div></div>
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews The Internet Systems Consortium
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews (<acronym class="acronym">ISC</acronym>) offers a wide range
71c66a876ecca77923638d3f94cc0783152b2f03Mark 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
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews 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
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews 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
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein To discuss arrangements for support, contact
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User <a class="link" href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews <acronym class="acronym">ISC</acronym> web page at
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User <a class="link" href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to read more.
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71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews<td width="40%" align="left" valign="top">Chapter�7.�<acronym class="acronym">BIND</acronym> 9 Security Considerations�</td>
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cd32f419a8a5432fbb139f56ee73cbf68b9350ccTinderbox User<td width="40%" align="right" valign="top">�Appendix�A.�Release Notes</td>
c313914d0e66b20969215e519bbf2ab4ecf39512Tinderbox User<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.3 (Extended Support Version)</p>