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0c27b3fe77ac1d5094ba3521e8142d9e7973133fMark Andrews - Copyright (C) 2004-2013 Internet Systems Consortium, Inc. ("ISC")
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews - Copyright (C) 2000-2003 Internet Software Consortium.
0c27b3fe77ac1d5094ba3521e8142d9e7973133fMark Andrews - Permission to use, copy, modify, and/or distribute this software for any
0c27b3fe77ac1d5094ba3521e8142d9e7973133fMark Andrews - purpose with or without fee is hereby granted, provided that the above
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews - copyright notice and this permission notice appear in all copies.
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
83a28ca274521e15086fc39febde507bcc4e145eMark Andrews - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt - PERFORMANCE OF THIS SOFTWARE.
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ad127d839d2e7aa542939a8a336691407e23397eMark Andrews<tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr>
19c7b1a0293498a3e36692c59646ed6e15ffc8d0Tinderbox User<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td>
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14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt<div class="titlepage"><div><div><h2 class="title">
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h2></div></div></div>
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2605875">Common Problems</a></span></dt>
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt<dd><dl><dt><span class="sect2"><a href="Bv9ARM.ch08.html#id2605880">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2605892">Incrementing and Changing the Serial Number</a></span></dt>
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2605909">Where Can I Get Help?</a></span></dt>
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt<div class="titlepage"><div><div><h2 class="title" style="clear: both">
30eec077db2bdcb6f2a0dc388a3cdde2ede75ec1Mark Andrews<a name="id2605875"></a>Common Problems</h2></div></div></div>
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews<div class="titlepage"><div><div><h3 class="title">
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews<a name="id2605880"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews The best solution to solving installation and
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt configuration issues is to take preventative measures by setting
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews up logging files beforehand. The log files provide a
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt source of hints and information that can be used to figure out
30eec077db2bdcb6f2a0dc388a3cdde2ede75ec1Mark Andrews what went wrong and how to fix the problem.
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews<div class="titlepage"><div><div><h2 class="title" style="clear: both">
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews<a name="id2605892"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews Zone serial numbers are just numbers — they aren't
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews date related. A lot of people set them to a number that
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews represents a date, usually of the form YYYYMMDDRR.
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews Occasionally they will make a mistake and set them to a
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt "date in the future" then try to correct them by setting
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt them to the "current date". This causes problems because
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt serial numbers are used to indicate that a zone has been
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt updated. If the serial number on the slave server is
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt lower than the serial number on the master, the slave
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt server will attempt to update its copy of the zone.
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt Setting the serial number to a lower number on the master
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt server than the slave server means that the slave will not perform
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt updates to its copy of the zone.
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt The solution to this is to add 2147483647 (2^31-1) to the
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt number, reload the zone and make sure all slaves have updated to
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt the new zone serial number, then reset the number to what you want
ba751492fcc4f161a18b983d4f018a1a52938cb9Evan Hunt it to be, and reload the zone again.
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews<div class="titlepage"><div><div><h2 class="title" style="clear: both">
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews<a name="id2605909"></a>Where Can I Get Help?</h2></div></div></div>
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews The Internet Systems Consortium
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews (<acronym class="acronym">ISC</acronym>) offers a wide range
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews levels of premium support are available and each level includes
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews support for all <acronym class="acronym">ISC</acronym> programs,
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews significant discounts on products
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews and training, and a recognized priority on bug fixes and
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews support agreement package which includes services ranging from bug
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews fix announcements to remote support. It also includes training in
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews To discuss arrangements for support, contact
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews <a href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews <acronym class="acronym">ISC</acronym> web page at
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews <a href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
ad127d839d2e7aa542939a8a336691407e23397eMark Andrews to read more.
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42782931073786f98d3d0a617351db40066949a4Mukund Sivaraman<td width="40%" align="left" valign="top">Chapter�7.�<acronym class="acronym">BIND</acronym> 9 Security Considerations�</td>
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42782931073786f98d3d0a617351db40066949a4Mukund Sivaraman<td width="40%" align="right" valign="top">�Appendix�A.�Appendices</td>