Bv9ARM.ch08.html revision 0a4f0f6ab6ec08442122837eba5f119d2d9d7864
9bff67898d55cddfcec9ce30cc2b1bb6211ec691David Lawrence - Copyright (C) 2004-2015 Internet Systems Consortium, Inc. ("ISC")
9bff67898d55cddfcec9ce30cc2b1bb6211ec691David Lawrence - Copyright (C) 2000-2003 Internet Software Consortium.
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff - Permission to use, copy, modify, and/or distribute this software for any
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff - purpose with or without fee is hereby granted, provided that the above
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff - copyright notice and this permission notice appear in all copies.
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff - PERFORMANCE OF THIS SOFTWARE.
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79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<link rel="next" href="Bv9ARM.ch09.html" title="Appendix�A.�Release Notes">
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79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<td width="20%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<div class="titlepage"><div><div><h2 class="title">
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h2></div></div></div>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2607914">Common Problems</a></span></dt>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<dd><dl><dt><span class="sect2"><a href="Bv9ARM.ch08.html#id2607920">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2607931">Incrementing and Changing the Serial Number</a></span></dt>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2607948">Where Can I Get Help?</a></span></dt>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<div class="titlepage"><div><div><h2 class="title" style="clear: both">
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<a name="id2607914"></a>Common Problems</h2></div></div></div>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<div class="titlepage"><div><div><h3 class="title">
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<a name="id2607920"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff The best solution to solving installation and
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff configuration issues is to take preventative measures by setting
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff up logging files beforehand. The log files provide a
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff source of hints and information that can be used to figure out
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff what went wrong and how to fix the problem.
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<div class="titlepage"><div><div><h2 class="title" style="clear: both">
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<a name="id2607931"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff Zone serial numbers are just numbers — they aren't
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff date related. A lot of people set them to a number that
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff represents a date, usually of the form YYYYMMDDRR.
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff Occasionally they will make a mistake and set them to a
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff "date in the future" then try to correct them by setting
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff them to the "current date". This causes problems because
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff serial numbers are used to indicate that a zone has been
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff updated. If the serial number on the slave server is
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff lower than the serial number on the master, the slave
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff server will attempt to update its copy of the zone.
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff Setting the serial number to a lower number on the master
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff server than the slave server means that the slave will not perform
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff updates to its copy of the zone.
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff The solution to this is to add 2147483647 (2^31-1) to the
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff number, reload the zone and make sure all slaves have updated to
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff the new zone serial number, then reset the number to what you want
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff it to be, and reload the zone again.
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<div class="titlepage"><div><div><h2 class="title" style="clear: both">
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff<a name="id2607948"></a>Where Can I Get Help?</h2></div></div></div>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff The Internet Systems Consortium
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff (<acronym class="acronym">ISC</acronym>) offers a wide range
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff levels of premium support are available and each level includes
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff support for all <acronym class="acronym">ISC</acronym> programs,
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff significant discounts on products
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff and training, and a recognized priority on bug fixes and
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff support agreement package which includes services ranging from bug
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff fix announcements to remote support. It also includes training in
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff To discuss arrangements for support, contact
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff <a href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff <acronym class="acronym">ISC</acronym> web page at
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff <a href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
79d29bd3206f9dfc77521bcdc516c5e255bc717dMichael Graff to read more.