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d2ec54f7875f7e05edd56195adbeb593c947763fphitran - Copyright (C) 2004-2011 Internet Systems Consortium, Inc. ("ISC")
d2ec54f7875f7e05edd56195adbeb593c947763fphitran - Copyright (C) 2000-2003 Internet Software Consortium.
d2ec54f7875f7e05edd56195adbeb593c947763fphitran - Permission to use, copy, modify, and/or distribute this software for any
d2ec54f7875f7e05edd56195adbeb593c947763fphitran - purpose with or without fee is hereby granted, provided that the above
d2ec54f7875f7e05edd56195adbeb593c947763fphitran - copyright notice and this permission notice appear in all copies.
d2ec54f7875f7e05edd56195adbeb593c947763fphitran - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
d2ec54f7875f7e05edd56195adbeb593c947763fphitran - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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2d6b5ea734bb47d251c82670646fde46af15fd69Guoli Shu<link rel="start" href="Bv9ARM.html" title="BIND 9 Administrator Reference Manual">
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<link rel="up" href="Bv9ARM.html" title="BIND 9 Administrator Reference Manual">
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<link rel="prev" href="Bv9ARM.ch07.html" title="Chapter�7.�BIND 9 Security Considerations">
28b6fd27d5ff75fe6fdeb119a21575b0652a7e70Hans Rosenfeld<link rel="next" href="Bv9ARM.ch09.html" title="Appendix�A.�Appendices">
28b6fd27d5ff75fe6fdeb119a21575b0652a7e70Hans Rosenfeld<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
2d6b5ea734bb47d251c82670646fde46af15fd69Guoli Shu<tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<td width="20%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h2></div></div></div>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2603739">Common Problems</a></span></dt>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<dd><dl><dt><span class="sect2"><a href="Bv9ARM.ch08.html#id2603745">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2603756">Incrementing and Changing the Serial Number</a></span></dt>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2603773">Where Can I Get Help?</a></span></dt>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<div class="titlepage"><div><div><h2 class="title" style="clear: both">
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<a name="id2603739"></a>Common Problems</h2></div></div></div>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<a name="id2603745"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran The best solution to solving installation and
d2ec54f7875f7e05edd56195adbeb593c947763fphitran configuration issues is to take preventative measures by setting
d2ec54f7875f7e05edd56195adbeb593c947763fphitran up logging files beforehand. The log files provide a
d2ec54f7875f7e05edd56195adbeb593c947763fphitran source of hints and information that can be used to figure out
d2ec54f7875f7e05edd56195adbeb593c947763fphitran what went wrong and how to fix the problem.
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<div class="titlepage"><div><div><h2 class="title" style="clear: both">
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<a name="id2603756"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran Zone serial numbers are just numbers — they aren't
d2ec54f7875f7e05edd56195adbeb593c947763fphitran date related. A lot of people set them to a number that
d2ec54f7875f7e05edd56195adbeb593c947763fphitran represents a date, usually of the form YYYYMMDDRR.
d2ec54f7875f7e05edd56195adbeb593c947763fphitran Occasionally they will make a mistake and set them to a
d2ec54f7875f7e05edd56195adbeb593c947763fphitran "date in the future" then try to correct them by setting
d2ec54f7875f7e05edd56195adbeb593c947763fphitran them to the "current date". This causes problems because
d2ec54f7875f7e05edd56195adbeb593c947763fphitran serial numbers are used to indicate that a zone has been
d2ec54f7875f7e05edd56195adbeb593c947763fphitran updated. If the serial number on the slave server is
d2ec54f7875f7e05edd56195adbeb593c947763fphitran lower than the serial number on the master, the slave
d2ec54f7875f7e05edd56195adbeb593c947763fphitran server will attempt to update its copy of the zone.
d2ec54f7875f7e05edd56195adbeb593c947763fphitran Setting the serial number to a lower number on the master
d2ec54f7875f7e05edd56195adbeb593c947763fphitran server than the slave server means that the slave will not perform
d2ec54f7875f7e05edd56195adbeb593c947763fphitran updates to its copy of the zone.
d2ec54f7875f7e05edd56195adbeb593c947763fphitran The solution to this is to add 2147483647 (2^31-1) to the
d2ec54f7875f7e05edd56195adbeb593c947763fphitran number, reload the zone and make sure all slaves have updated to
d2ec54f7875f7e05edd56195adbeb593c947763fphitran the new zone serial number, then reset the number to what you want
d2ec54f7875f7e05edd56195adbeb593c947763fphitran it to be, and reload the zone again.
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<div class="titlepage"><div><div><h2 class="title" style="clear: both">
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<a name="id2603773"></a>Where Can I Get Help?</h2></div></div></div>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran The Internet Systems Consortium
d2ec54f7875f7e05edd56195adbeb593c947763fphitran (<acronym class="acronym">ISC</acronym>) offers a wide range
d2ec54f7875f7e05edd56195adbeb593c947763fphitran of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
d2ec54f7875f7e05edd56195adbeb593c947763fphitran levels of premium support are available and each level includes
d2ec54f7875f7e05edd56195adbeb593c947763fphitran support for all <acronym class="acronym">ISC</acronym> programs,
d2ec54f7875f7e05edd56195adbeb593c947763fphitran significant discounts on products
d2ec54f7875f7e05edd56195adbeb593c947763fphitran and training, and a recognized priority on bug fixes and
d2ec54f7875f7e05edd56195adbeb593c947763fphitran non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard
d2ec54f7875f7e05edd56195adbeb593c947763fphitran support agreement package which includes services ranging from bug
d2ec54f7875f7e05edd56195adbeb593c947763fphitran fix announcements to remote support. It also includes training in
d2ec54f7875f7e05edd56195adbeb593c947763fphitran <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
d2ec54f7875f7e05edd56195adbeb593c947763fphitran To discuss arrangements for support, contact
d2ec54f7875f7e05edd56195adbeb593c947763fphitran <a href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
d2ec54f7875f7e05edd56195adbeb593c947763fphitran <a href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran to read more.
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<td width="40%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<td width="40%" align="left" valign="top">Chapter�7.�<acronym class="acronym">BIND</acronym> 9 Security Considerations�</td>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td>
d2ec54f7875f7e05edd56195adbeb593c947763fphitran<td width="40%" align="right" valign="top">�Appendix�A.�Appendices</td>