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a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync<tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr>
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync<td width="20%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h1></div></div></div>
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync<dt><span class="section"><a href="Bv9ARM.ch08.html#common_problems">Common Problems</a></span></dt>
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync<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>
344115a50dfcaf97123d38b056161195a7e4e48cvboxsync<dt><span class="section"><a href="Bv9ARM.ch08.html#id-1.9.3">Incrementing and Changing the Serial Number</a></span></dt>
cc4a983b4e678d543bcf63507184d6c64d2bc729vboxsync<dt><span class="section"><a href="Bv9ARM.ch08.html#more_help">Where Can I Get Help?</a></span></dt>
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync<div class="titlepage"><div><div><h2 class="title" style="clear: both">
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync<a name="common_problems"></a>Common Problems</h2></div></div></div>
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync<a name="id-1.9.2.2"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync The best solution to solving installation and
3393c62e395aa8388303d99f765a219efc289158vboxsync configuration issues is to take preventative measures by setting
caeb4ff7c43bbc18496efb4870c1557fbd36eb33vboxsync up logging files beforehand. The log files provide a
9d40115d8e0dc83f9f904b371ebaf4957206f8f8vboxsync source of hints and information that can be used to figure out
fa210c0ab0503753e25147b83c1f508de8635230vboxsync what went wrong and how to fix the problem.
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync<div class="titlepage"><div><div><h2 class="title" style="clear: both">
4424773d37044bcf5f6d85c04f6f2832b52c32fbvboxsync<a name="id-1.9.3"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
b34f0f200ed0778053a2a1d93381c2c6b60cb2d5vboxsync Zone serial numbers are just numbers — they aren't
413226b7b8c84b96c83f89c4cf28eae3461c6d86vboxsync date related. A lot of people set them to a number that
07f25fdd897292d7c59ca916591672f10609b849vboxsync represents a date, usually of the form YYYYMMDDRR.
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync Occasionally they will make a mistake and set them to a
152aa5dc8bf917aa0a3f91b01869a74e062281dcvboxsync "date in the future" then try to correct them by setting
152aa5dc8bf917aa0a3f91b01869a74e062281dcvboxsync them to the "current date". This causes problems because
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync serial numbers are used to indicate that a zone has been
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync updated. If the serial number on the slave server is
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync lower than the serial number on the master, the slave
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync server will attempt to update its copy of the zone.
59561983944c0d5888fdaf02f1666fa84c184b24vboxsync Setting the serial number to a lower number on the master
59561983944c0d5888fdaf02f1666fa84c184b24vboxsync server than the slave server means that the slave will not perform
089c21a647af46044cad04a78cfdcfae814d2105vboxsync updates to its copy of the zone.
e7e8a6cb1597db3e0a1a83733e1d90e7a1688647vboxsync The solution to this is to add 2147483647 (2^31-1) to the
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync number, reload the zone and make sure all slaves have updated to
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync the new zone serial number, then reset the number to what you want
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync it to be, and reload the zone again.
089c21a647af46044cad04a78cfdcfae814d2105vboxsync<div class="titlepage"><div><div><h2 class="title" style="clear: both">
089c21a647af46044cad04a78cfdcfae814d2105vboxsync<a name="more_help"></a>Where Can I Get Help?</h2></div></div></div>
5a69c0cb9f0b67752d57ec350d9d95fd9edf3eedvboxsync The Internet Systems Consortium
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync (<acronym class="acronym">ISC</acronym>) offers a wide range
089c21a647af46044cad04a78cfdcfae814d2105vboxsync of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
089c21a647af46044cad04a78cfdcfae814d2105vboxsync levels of premium support are available and each level includes
5294b8bda3841180e9ed62cee43bd67ae6620d37vboxsync support for all <acronym class="acronym">ISC</acronym> programs,
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync significant discounts on products
b34f0f200ed0778053a2a1d93381c2c6b60cb2d5vboxsync and training, and a recognized priority on bug fixes and
b34f0f200ed0778053a2a1d93381c2c6b60cb2d5vboxsync non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync support agreement package which includes services ranging from bug
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync fix announcements to remote support. It also includes training in
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync To discuss arrangements for support, contact
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync <a class="link" href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync <a class="link" href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync to read more.
5294b8bda3841180e9ed62cee43bd67ae6620d37vboxsync<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
5294b8bda3841180e9ed62cee43bd67ae6620d37vboxsync<td width="40%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
5294b8bda3841180e9ed62cee43bd67ae6620d37vboxsync<td width="40%" align="left" valign="top">Chapter�7.�<acronym class="acronym">BIND</acronym> 9 Security Considerations�</td>
5294b8bda3841180e9ed62cee43bd67ae6620d37vboxsync<td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td>
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync<td width="40%" align="right" valign="top">�Appendix�A.�Release Notes</td>
0f0e28f1bcdfc19cc2bc0b02abe5da8d416225a3vboxsync<p xmlns:db="http://docbook.org/ns/docbook" style="text-align: center;">BIND 9.11.0rc1</p>