4518N/A - Copyright (C) 2004-2009 Internet Systems Consortium, Inc. ("ISC") 4518N/A - Copyright (C) 2000-2003 Internet Software Consortium. 4518N/A - Permission to use, copy, modify, and distribute this software for any 4518N/A - purpose with or without fee is hereby granted, provided that the above 4518N/A - copyright notice and this permission notice appear in all copies. 4518N/A - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 4518N/A - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 4518N/A - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 4518N/A - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 4518N/A - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 4518N/A - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 4518N/A - PERFORMANCE OF THIS SOFTWARE. 4518N/A<
meta http-
equiv="Content-Type" content="text/html; charset=ISO-8859-1">
4518N/A<
title>Chapter�8.�Troubleshooting</
title>
4518N/A<
meta name="generator" content="DocBook XSL Stylesheets V1.71.1">
4518N/A<
link rel="start" href="Bv9ARM.html" title="BIND 9 Administrator Reference Manual">
4518N/A<
body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
4518N/A<
table width="100%" summary="Navigation header">
4518N/A<
tr><
th colspan="3" align="center">Chapter�8.�Troubleshooting</
th></
tr>
4518N/A<
td width="20%" align="left">
4518N/A<
th width="60%" align="center">�</
th>
4518N/A<
div class="chapter" lang="en">
4518N/A<
div class="titlepage"><
div><
div><
h2 class="title">
4518N/A<
p><
b>Table of Contents</
b></
p>
4518N/A<
dd><
dl><
dt><
span class="sect2"><
a href="Bv9ARM.ch08.html#id2599568">It's not working; how can I figure out what's wrong?</
a></
span></
dt></
dl></
dd>
4518N/A<
dt><
span class="sect1"><
a href="Bv9ARM.ch08.html#id2599579">Incrementing and Changing the Serial Number</
a></
span></
dt>
4518N/A<
div class="sect1" lang="en">
4518N/A<
div class="titlepage"><
div><
div><
h2 class="title" style="clear: both">
4518N/A<
a name="id2599562"></
a>Common Problems</
h2></
div></
div></
div>
4518N/A<
div class="sect2" lang="en">
4518N/A<
div class="titlepage"><
div><
div><
h3 class="title">
4518N/A<
a name="id2599568"></
a>It's not working; how can I figure out what's wrong?</
h3></
div></
div></
div>
4518N/A The best solution to solving installation and
4518N/A configuration issues is to take preventative measures by setting
4518N/A up logging files beforehand. The log files provide a
4518N/A source of hints and information that can be used to figure out
4518N/A what went wrong and how to fix the problem.
4518N/A<
div class="sect1" lang="en">
4518N/A<
div class="titlepage"><
div><
div><
h2 class="title" style="clear: both">
4518N/A<
a name="id2599579"></
a>Incrementing and Changing the Serial Number</
h2></
div></
div></
div>
4518N/A Zone serial numbers are just numbers — they aren't
4518N/A date related. A lot of people set them to a number that
4518N/A represents a date, usually of the form YYYYMMDDRR.
4518N/A Occasionally they will make a mistake and set them to a
4518N/A "date in the future" then try to correct them by setting
4518N/A them to the "current date". This causes problems because
4518N/A serial numbers are used to indicate that a zone has been
4518N/A updated. If the serial number on the slave server is
4518N/A lower than the serial number on the master, the slave
4518N/A server will attempt to update its copy of the zone.
4518N/A Setting the serial number to a lower number on the master
4518N/A server than the slave server means that the slave will not perform
4518N/A updates to its copy of the zone.
4518N/A The solution to this is to add 2147483647 (2^31-1) to the
4518N/A number, reload the zone and make sure all slaves have updated to
4518N/A the new zone serial number, then reset the number to what you want
4518N/A it to be, and reload the zone again.
4518N/A<
div class="sect1" lang="en">
4518N/A<
div class="titlepage"><
div><
div><
h2 class="title" style="clear: both">
4518N/A<
a name="id2599596"></
a>Where Can I Get Help?</
h2></
div></
div></
div>
4518N/A The Internet Systems Consortium
4518N/A (<
acronym class="acronym">ISC</
acronym>) offers a wide range
4518N/A of support and service agreements for <
acronym class="acronym">BIND</
acronym> and <
acronym class="acronym">DHCP</
acronym> servers. Four
4518N/A levels of premium support are available and each level includes
4518N/A support for all <
acronym class="acronym">ISC</
acronym> programs,
4518N/A significant discounts on products
4518N/A and training, and a recognized priority on bug fixes and
4518N/A non-funded feature requests. In addition, <
acronym class="acronym">ISC</
acronym> offers a standard
4518N/A support agreement package which includes services ranging from bug
4518N/A fix announcements to remote support. It also includes training in
4518N/A <
acronym class="acronym">BIND</
acronym> and <
acronym class="acronym">DHCP</
acronym>.
4518N/A To discuss arrangements for support, contact
4518N/A <
a href="mailto:info@isc.org" target="_top">info@isc.org</
a> or visit the
4518N/A <
acronym class="acronym">ISC</
acronym> web page at
4518N/A<
table width="100%" summary="Navigation footer">
4518N/A<
td width="40%" align="left">
4518N/A<
td width="20%" align="center">�</
td>
4518N/A<
td width="40%" align="left" valign="top">Chapter�7.�<
acronym class="acronym">BIND</
acronym> 9 Security Considerations�</
td>
4518N/A<
td width="40%" align="right" valign="top">�Appendix�A.�Appendices</
td>