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Edit File: Bv9ARM.ch08.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!-- - Copyright (C) 2000-2021 Internet Systems Consortium, Inc. ("ISC") - - This Source Code Form is subject to the terms of the Mozilla Public - License, v. 2.0. If a copy of the MPL was not distributed with this - file, You can obtain one at http://mozilla.org/MPL/2.0/. --> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Chapter�8.�Troubleshooting</title> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="Bv9ARM.html" title="BIND 9 Administrator Reference Manual"> <link rel="up" href="Bv9ARM.html" title="BIND 9 Administrator Reference Manual"> <link rel="prev" href="Bv9ARM.ch07.html" title="Chapter�7.�BIND 9 Security Considerations"> <link rel="next" href="Bv9ARM.ch09.html" title="Appendix�A.�Release Notes"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr> <tr> <td width="20%" align="left"> <a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td> <th width="60%" align="center">�</th> <td width="20%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a> </td> </tr> </table> <hr> </div> <div class="chapter"> <div class="titlepage"><div><div><h1 class="title"> <a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h1></div></div></div> <div class="toc"> <p><b>Table of Contents</b></p> <dl class="toc"> <dt><span class="section"><a href="Bv9ARM.ch08.html#common_problems">Common Problems</a></span></dt> <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> <dt><span class="section"><a href="Bv9ARM.ch08.html#id-1.9.3">Incrementing and Changing the Serial Number</a></span></dt> <dt><span class="section"><a href="Bv9ARM.ch08.html#more_help">Where Can I Get Help?</a></span></dt> </dl> </div> <div class="section"> <div class="titlepage"><div><div><h2 class="title" style="clear: both"> <a name="common_problems"></a>Common Problems</h2></div></div></div> <div class="section"> <div class="titlepage"><div><div><h3 class="title"> <a name="id-1.9.2.2"></a>It's Not Working; How Can I Figure Out What's Wrong?</h3></div></div></div> <p> The best solution to installation and configuration issues is to take preventive measures by setting up logging files beforehand. The log files provide a source of hints and information that can be used to identify what went wrong and fix the problem. </p> </div> </div> <div class="section"> <div class="titlepage"><div><div><h2 class="title" style="clear: both"> <a name="id-1.9.3"></a>Incrementing and Changing the Serial Number</h2></div></div></div> <p> Zone serial numbers are just numbers — they are not date-related. However, many people set them to a number that represents a date, usually of the form YYYYMMDDRR. Occasionally they make a mistake and set the serial number to a date in the future, then try to correct it by setting it to the current date. This causes problems because serial numbers are used to indicate that a zone has been updated. If the serial number on the secondary server is lower than the serial number on the primary, the secondary server attempts to update its copy of the zone. </p> <p> Setting the serial number to a lower number on the primary server than the one on the secondary server means that the secondary will not perform updates to its copy of the zone. </p> <p> The solution to this is to add 2147483647 (2^31-1) to the number, reload the zone and make sure all secondaries have updated to the new zone serial number, then reset it to the desired number and reload the zone again. </p> </div> <div class="section"> <div class="titlepage"><div><div><h2 class="title" style="clear: both"> <a name="more_help"></a>Where Can I Get Help?</h2></div></div></div> <p> The BIND-users mailing list, at https://lists.isc.org/mailman/listinfo/bind-users, is an excellent resource for peer user support. In addition, <acronym class="acronym">ISC</acronym> maintains a Knowledgebase of helpful articles at https://kb.isc.org. </p> <p> Internet Systems Consortium (<acronym class="acronym">ISC</acronym>) offers annual support agreements for <acronym class="acronym">BIND</acronym>9, ISC <acronym class="acronym">DHCP</acronym>, and Kea DHCP. All paid support contracts include advance security notifications; some levels include service level agreements (SLAs), premium software features, and increased priority on bug fixes and feature requests. </p> <p> Please contact <a class="link" href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit <a class="link" href="https://www.isc.org/contact/" target="_top">https://www.isc.org/contact/</a> for more information. </p> </div> </div> <div class="navfooter"> <hr> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"> <a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td> <td width="20%" align="center">�</td> <td width="40%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a> </td> </tr> <tr> <td width="40%" align="left" valign="top">Chapter�7.�<acronym class="acronym">BIND</acronym> 9 Security Considerations�</td> <td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td> <td width="40%" align="right" valign="top">�Appendix�A.�Release Notes</td> </tr> </table> </div> <p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.36 (Extended Support Version)</p> </body> </html>
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