Bv9ARM.ch08.html revision 3b2c6af63e0367c6eabe0a21ca23841ca87cd22f
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan - Copyright (C) 2004-2009 Internet Systems Consortium, Inc. ("ISC")
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan - Copyright (C) 2000-2003 Internet Software Consortium.
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan - Permission to use, copy, modify, and/or distribute this software for any
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan - purpose with or without fee is hereby granted, provided that the above
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan - copyright notice and this permission notice appear in all copies.
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
ccf9d4a5c6453fa9f8b839baeee25147865fbb7dJames Phillpotts - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan - PERFORMANCE OF THIS SOFTWARE.
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81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<link rel="prev" href="Bv9ARM.ch07.html" title="Chapter�7.�BIND 9 Security Considerations">
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81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<td width="20%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<div class="titlepage"><div><div><h2 class="title">
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h2></div></div></div>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2600992">Common Problems</a></span></dt>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<dd><dl><dt><span class="sect2"><a href="Bv9ARM.ch08.html#id2600997">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2601009">Incrementing and Changing the Serial Number</a></span></dt>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2601026">Where Can I Get Help?</a></span></dt>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<div class="titlepage"><div><div><h2 class="title" style="clear: both">
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<a name="id2600992"></a>Common Problems</h2></div></div></div>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<div class="titlepage"><div><div><h3 class="title">
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<a name="id2600997"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan The best solution to solving installation and
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan configuration issues is to take preventative measures by setting
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan up logging files beforehand. The log files provide a
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan source of hints and information that can be used to figure out
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan what went wrong and how to fix the problem.
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<div class="titlepage"><div><div><h2 class="title" style="clear: both">
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<a name="id2601009"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan Zone serial numbers are just numbers — they aren't
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan date related. A lot of people set them to a number that
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan represents a date, usually of the form YYYYMMDDRR.
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan Occasionally they will make a mistake and set them to a
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan "date in the future" then try to correct them by setting
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan them to the "current date". This causes problems because
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan serial numbers are used to indicate that a zone has been
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan updated. If the serial number on the slave server is
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan lower than the serial number on the master, the slave
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan server will attempt to update its copy of the zone.
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan Setting the serial number to a lower number on the master
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan server than the slave server means that the slave will not perform
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan updates to its copy of the zone.
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan The solution to this is to add 2147483647 (2^31-1) to the
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan number, reload the zone and make sure all slaves have updated to
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan the new zone serial number, then reset the number to what you want
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan it to be, and reload the zone again.
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<div class="titlepage"><div><div><h2 class="title" style="clear: both">
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<a name="id2601026"></a>Where Can I Get Help?</h2></div></div></div>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan The Internet Systems Consortium
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan (<acronym class="acronym">ISC</acronym>) offers a wide range
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
3deb9260b3feeed415cebe3c379eb4e7ed17de62sachiko levels of premium support are available and each level includes
3deb9260b3feeed415cebe3c379eb4e7ed17de62sachiko support for all <acronym class="acronym">ISC</acronym> programs,
3deb9260b3feeed415cebe3c379eb4e7ed17de62sachiko significant discounts on products
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan and training, and a recognized priority on bug fixes and
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan support agreement package which includes services ranging from bug
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan fix announcements to remote support. It also includes training in
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan To discuss arrangements for support, contact
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan <a href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan <acronym class="acronym">ISC</acronym> web page at
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan <a href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan to read more.
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<td width="40%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<td width="40%" align="left" valign="top">Chapter�7.�<acronym class="acronym">BIND</acronym> 9 Security Considerations�</td>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td>
81ec9608aca5c5fb618d1c92ff435c2ad36f4770Dirk Hogan<td width="40%" align="right" valign="top">�Appendix�A.�Appendices</td>