1*00b67f09SDavid van Moolenbroek<!-- 2*00b67f09SDavid van Moolenbroek - Copyright (C) 2004-2015 Internet Systems Consortium, Inc. ("ISC") 3*00b67f09SDavid van Moolenbroek - Copyright (C) 2000-2003 Internet Software Consortium. 4*00b67f09SDavid van Moolenbroek - 5*00b67f09SDavid van Moolenbroek - Permission to use, copy, modify, and/or distribute this software for any 6*00b67f09SDavid van Moolenbroek - purpose with or without fee is hereby granted, provided that the above 7*00b67f09SDavid van Moolenbroek - copyright notice and this permission notice appear in all copies. 8*00b67f09SDavid van Moolenbroek - 9*00b67f09SDavid van Moolenbroek - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 10*00b67f09SDavid van Moolenbroek - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 11*00b67f09SDavid van Moolenbroek - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 12*00b67f09SDavid van Moolenbroek - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 13*00b67f09SDavid van Moolenbroek - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 14*00b67f09SDavid van Moolenbroek - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 15*00b67f09SDavid van Moolenbroek - PERFORMANCE OF THIS SOFTWARE. 16*00b67f09SDavid van Moolenbroek--> 17*00b67f09SDavid van Moolenbroek<!-- $Id: Bv9ARM.ch08.html,v 1.5 2015/09/03 07:33:34 christos Exp $ --> 18*00b67f09SDavid van Moolenbroek<html> 19*00b67f09SDavid van Moolenbroek<head> 20*00b67f09SDavid van Moolenbroek<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> 21*00b67f09SDavid van Moolenbroek<title>Chapter�8.�Troubleshooting</title> 22*00b67f09SDavid van Moolenbroek<meta name="generator" content="DocBook XSL Stylesheets V1.71.1"> 23*00b67f09SDavid van Moolenbroek<link rel="start" href="Bv9ARM.html" title="BIND 9 Administrator Reference Manual"> 24*00b67f09SDavid van Moolenbroek<link rel="up" href="Bv9ARM.html" title="BIND 9 Administrator Reference Manual"> 25*00b67f09SDavid van Moolenbroek<link rel="prev" href="Bv9ARM.ch07.html" title="Chapter�7.�BIND 9 Security Considerations"> 26*00b67f09SDavid van Moolenbroek<link rel="next" href="Bv9ARM.ch09.html" title="Appendix�A.�Release Notes"> 27*00b67f09SDavid van Moolenbroek</head> 28*00b67f09SDavid van Moolenbroek<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 29*00b67f09SDavid van Moolenbroek<div class="navheader"> 30*00b67f09SDavid van Moolenbroek<table width="100%" summary="Navigation header"> 31*00b67f09SDavid van Moolenbroek<tr><th colspan="3" align="center">Chapter�8.�Troubleshooting</th></tr> 32*00b67f09SDavid van Moolenbroek<tr> 33*00b67f09SDavid van Moolenbroek<td width="20%" align="left"> 34*00b67f09SDavid van Moolenbroek<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td> 35*00b67f09SDavid van Moolenbroek<th width="60%" align="center">�</th> 36*00b67f09SDavid van Moolenbroek<td width="20%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a> 37*00b67f09SDavid van Moolenbroek</td> 38*00b67f09SDavid van Moolenbroek</tr> 39*00b67f09SDavid van Moolenbroek</table> 40*00b67f09SDavid van Moolenbroek<hr> 41*00b67f09SDavid van Moolenbroek</div> 42*00b67f09SDavid van Moolenbroek<div class="chapter" lang="en"> 43*00b67f09SDavid van Moolenbroek<div class="titlepage"><div><div><h2 class="title"> 44*00b67f09SDavid van Moolenbroek<a name="Bv9ARM.ch08"></a>Chapter�8.�Troubleshooting</h2></div></div></div> 45*00b67f09SDavid van Moolenbroek<div class="toc"> 46*00b67f09SDavid van Moolenbroek<p><b>Table of Contents</b></p> 47*00b67f09SDavid van Moolenbroek<dl> 48*00b67f09SDavid van Moolenbroek<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2606597">Common Problems</a></span></dt> 49*00b67f09SDavid van Moolenbroek<dd><dl><dt><span class="sect2"><a href="Bv9ARM.ch08.html#id2606602">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd> 50*00b67f09SDavid van Moolenbroek<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2606614">Incrementing and Changing the Serial Number</a></span></dt> 51*00b67f09SDavid van Moolenbroek<dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2606699">Where Can I Get Help?</a></span></dt> 52*00b67f09SDavid van Moolenbroek</dl> 53*00b67f09SDavid van Moolenbroek</div> 54*00b67f09SDavid van Moolenbroek<div class="sect1" lang="en"> 55*00b67f09SDavid van Moolenbroek<div class="titlepage"><div><div><h2 class="title" style="clear: both"> 56*00b67f09SDavid van Moolenbroek<a name="id2606597"></a>Common Problems</h2></div></div></div> 57*00b67f09SDavid van Moolenbroek<div class="sect2" lang="en"> 58*00b67f09SDavid van Moolenbroek<div class="titlepage"><div><div><h3 class="title"> 59*00b67f09SDavid van Moolenbroek<a name="id2606602"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div> 60*00b67f09SDavid van Moolenbroek<p> 61*00b67f09SDavid van Moolenbroek The best solution to solving installation and 62*00b67f09SDavid van Moolenbroek configuration issues is to take preventative measures by setting 63*00b67f09SDavid van Moolenbroek up logging files beforehand. The log files provide a 64*00b67f09SDavid van Moolenbroek source of hints and information that can be used to figure out 65*00b67f09SDavid van Moolenbroek what went wrong and how to fix the problem. 66*00b67f09SDavid van Moolenbroek </p> 67*00b67f09SDavid van Moolenbroek</div> 68*00b67f09SDavid van Moolenbroek</div> 69*00b67f09SDavid van Moolenbroek<div class="sect1" lang="en"> 70*00b67f09SDavid van Moolenbroek<div class="titlepage"><div><div><h2 class="title" style="clear: both"> 71*00b67f09SDavid van Moolenbroek<a name="id2606614"></a>Incrementing and Changing the Serial Number</h2></div></div></div> 72*00b67f09SDavid van Moolenbroek<p> 73*00b67f09SDavid van Moolenbroek Zone serial numbers are just numbers — they aren't 74*00b67f09SDavid van Moolenbroek date related. A lot of people set them to a number that 75*00b67f09SDavid van Moolenbroek represents a date, usually of the form YYYYMMDDRR. 76*00b67f09SDavid van Moolenbroek Occasionally they will make a mistake and set them to a 77*00b67f09SDavid van Moolenbroek "date in the future" then try to correct them by setting 78*00b67f09SDavid van Moolenbroek them to the "current date". This causes problems because 79*00b67f09SDavid van Moolenbroek serial numbers are used to indicate that a zone has been 80*00b67f09SDavid van Moolenbroek updated. If the serial number on the slave server is 81*00b67f09SDavid van Moolenbroek lower than the serial number on the master, the slave 82*00b67f09SDavid van Moolenbroek server will attempt to update its copy of the zone. 83*00b67f09SDavid van Moolenbroek </p> 84*00b67f09SDavid van Moolenbroek<p> 85*00b67f09SDavid van Moolenbroek Setting the serial number to a lower number on the master 86*00b67f09SDavid van Moolenbroek server than the slave server means that the slave will not perform 87*00b67f09SDavid van Moolenbroek updates to its copy of the zone. 88*00b67f09SDavid van Moolenbroek </p> 89*00b67f09SDavid van Moolenbroek<p> 90*00b67f09SDavid van Moolenbroek The solution to this is to add 2147483647 (2^31-1) to the 91*00b67f09SDavid van Moolenbroek number, reload the zone and make sure all slaves have updated to 92*00b67f09SDavid van Moolenbroek the new zone serial number, then reset the number to what you want 93*00b67f09SDavid van Moolenbroek it to be, and reload the zone again. 94*00b67f09SDavid van Moolenbroek </p> 95*00b67f09SDavid van Moolenbroek</div> 96*00b67f09SDavid van Moolenbroek<div class="sect1" lang="en"> 97*00b67f09SDavid van Moolenbroek<div class="titlepage"><div><div><h2 class="title" style="clear: both"> 98*00b67f09SDavid van Moolenbroek<a name="id2606699"></a>Where Can I Get Help?</h2></div></div></div> 99*00b67f09SDavid van Moolenbroek<p> 100*00b67f09SDavid van Moolenbroek The Internet Systems Consortium 101*00b67f09SDavid van Moolenbroek (<acronym class="acronym">ISC</acronym>) offers a wide range 102*00b67f09SDavid van Moolenbroek of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four 103*00b67f09SDavid van Moolenbroek levels of premium support are available and each level includes 104*00b67f09SDavid van Moolenbroek support for all <acronym class="acronym">ISC</acronym> programs, 105*00b67f09SDavid van Moolenbroek significant discounts on products 106*00b67f09SDavid van Moolenbroek and training, and a recognized priority on bug fixes and 107*00b67f09SDavid van Moolenbroek non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard 108*00b67f09SDavid van Moolenbroek support agreement package which includes services ranging from bug 109*00b67f09SDavid van Moolenbroek fix announcements to remote support. It also includes training in 110*00b67f09SDavid van Moolenbroek <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>. 111*00b67f09SDavid van Moolenbroek </p> 112*00b67f09SDavid van Moolenbroek<p> 113*00b67f09SDavid van Moolenbroek To discuss arrangements for support, contact 114*00b67f09SDavid van Moolenbroek <a href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the 115*00b67f09SDavid van Moolenbroek <acronym class="acronym">ISC</acronym> web page at 116*00b67f09SDavid van Moolenbroek <a href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a> 117*00b67f09SDavid van Moolenbroek to read more. 118*00b67f09SDavid van Moolenbroek </p> 119*00b67f09SDavid van Moolenbroek</div> 120*00b67f09SDavid van Moolenbroek</div> 121*00b67f09SDavid van Moolenbroek<div class="navfooter"> 122*00b67f09SDavid van Moolenbroek<hr> 123*00b67f09SDavid van Moolenbroek<table width="100%" summary="Navigation footer"> 124*00b67f09SDavid van Moolenbroek<tr> 125*00b67f09SDavid van Moolenbroek<td width="40%" align="left"> 126*00b67f09SDavid van Moolenbroek<a accesskey="p" href="Bv9ARM.ch07.html">Prev</a>�</td> 127*00b67f09SDavid van Moolenbroek<td width="20%" align="center">�</td> 128*00b67f09SDavid van Moolenbroek<td width="40%" align="right">�<a accesskey="n" href="Bv9ARM.ch09.html">Next</a> 129*00b67f09SDavid van Moolenbroek</td> 130*00b67f09SDavid van Moolenbroek</tr> 131*00b67f09SDavid van Moolenbroek<tr> 132*00b67f09SDavid van Moolenbroek<td width="40%" align="left" valign="top">Chapter�7.�<acronym class="acronym">BIND</acronym> 9 Security Considerations�</td> 133*00b67f09SDavid van Moolenbroek<td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td> 134*00b67f09SDavid van Moolenbroek<td width="40%" align="right" valign="top">�Appendix�A.�Release Notes</td> 135*00b67f09SDavid van Moolenbroek</tr> 136*00b67f09SDavid van Moolenbroek</table> 137*00b67f09SDavid van Moolenbroek</div> 138*00b67f09SDavid van Moolenbroek<p style="text-align: center;">BIND 9.10.2-P4</p> 139*00b67f09SDavid van Moolenbroek</body> 140*00b67f09SDavid van Moolenbroek</html> 141