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60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="chapter" lang="en">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h2 class="title">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h2></div></div></div>
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60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p><b>Table of Contents</b></p>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<dl>
e21a2904f02a03fa06b6db04d348f65fe9c67b2bMark Andrews<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2593733">Common Problems</a></span></dt>
e21a2904f02a03fa06b6db04d348f65fe9c67b2bMark Andrews<dd><dl><dt><span class="sect2"><a href="Bv9ARM.ch08.html#id2593738">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
e21a2904f02a03fa06b6db04d348f65fe9c67b2bMark Andrews<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2593750">Incrementing and Changing the Serial Number</a></span></dt>
e21a2904f02a03fa06b6db04d348f65fe9c67b2bMark Andrews<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2593767">Where Can I Get Help?</a></span></dt>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein</dl>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein</div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="sect1" lang="en">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h2 class="title" style="clear: both">
e21a2904f02a03fa06b6db04d348f65fe9c67b2bMark Andrews<a name="id2593733"></a>Common Problems</h2></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="sect2" lang="en">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h3 class="title">
e21a2904f02a03fa06b6db04d348f65fe9c67b2bMark Andrews<a name="id2593738"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The best solution to solving installation and
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein configuration issues is to take preventative measures by setting
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein up logging files beforehand. The log files provide a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein source of hints and information that can be used to figure out
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein what went wrong and how to fix the problem.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein </p>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein</div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein</div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="sect1" lang="en">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h2 class="title" style="clear: both">
e21a2904f02a03fa06b6db04d348f65fe9c67b2bMark Andrews<a name="id2593750"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Zone serial numbers are just numbers-they aren't date
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein related. A lot of people set them to a number that represents a
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein date, usually of the form YYYYMMDDRR. A number of people have been
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein testing these numbers for Y2K compliance and have set the number
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to the year 2000 to see if it will work. They then try to restore
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the old serial number. This will cause problems because serial
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein numbers are used to indicate that a zone has been updated. If the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein serial number on the slave server is lower than the serial number
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein on the master, the slave server will attempt to update its copy of
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the zone.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein </p>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein Setting the serial number to a lower number on the master
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein server than the slave server means that the slave will not perform
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein updates to its copy of the zone.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein </p>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein The solution to this is to add 2147483647 (2^31-1) to the
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein number, reload the zone and make sure all slaves have updated to
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein the new zone serial number, then reset the number to what you want
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein it to be, and reload the zone again.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein </p>
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60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="sect1" lang="en">
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<div class="titlepage"><div><div><h2 class="title" style="clear: both">
e21a2904f02a03fa06b6db04d348f65fe9c67b2bMark Andrews<a name="id2593767"></a>Where Can I Get Help?</h2></div></div></div>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p>
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews The Internet Systems Consortium
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews (<acronym class="acronym">ISC</acronym>) offers a wide range
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein levels of premium support are available and each level includes
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews support for all <acronym class="acronym">ISC</acronym> programs,
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein significant discounts on products
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein and training, and a recognized priority on bug fixes and
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein support agreement package which includes services ranging from bug
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein fix announcements to remote support. It also includes training in
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein </p>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<p>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein To discuss arrangements for support, contact
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein <a href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews <acronym class="acronym">ISC</acronym> web page at
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews <a href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein to read more.
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein </p>
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71c66a876ecca77923638d3f94cc0783152b2f03Mark Andrews<td width="40%" align="left" valign="top">Chapter�7.�<acronym class="acronym">BIND</acronym> 9 Security Considerations�</td>
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60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein<td width="40%" align="right" valign="top">�Appendix�A.�Appendices</td>
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