/contrib/bind9/doc/arm/Bv9ARM.ch08.html

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  21. <title>Chapter 8. Troubleshooting</title>
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  31. <tr><th colspan="3" align="center">Chapter 8. Troubleshooting</th></tr>
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  42. <div class="chapter" lang="en">
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  43. <div class="titlepage"><div><div><h2 class="title">
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  44. <a name="Bv9ARM.ch08"></a>Chapter 8. Troubleshooting</h2></div></div></div>
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  45. <div class="toc">
    46. 

  46. <p><b>Table of Contents</b></p>
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  47. <dl>
    48. 

  48. <dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2603371">Common Problems</a></span></dt>
    49. 

  49. <dd><dl><dt><span class="sect2"><a href="Bv9ARM.ch08.html#id2603377">It's not working; how can I figure out what's wrong?</a></span></dt></dl></dd>
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  50. <dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2603388">Incrementing and Changing the Serial Number</a></span></dt>
    51. 

  51. <dt><span class="sect1"><a href="Bv9ARM.ch08.html#id2603405">Where Can I Get Help?</a></span></dt>
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  52. </dl>
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  53. </div>
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  54. <div class="sect1" lang="en">
    55. 

  55. <div class="titlepage"><div><div><h2 class="title" style="clear: both">
    56. 

  56. <a name="id2603371"></a>Common Problems</h2></div></div></div>
    57. 

  57. <div class="sect2" lang="en">
    58. 

  58. <div class="titlepage"><div><div><h3 class="title">
    59. 

  59. <a name="id2603377"></a>It's not working; how can I figure out what's wrong?</h3></div></div></div>
    60. 

  60. <p>
    61. 

  61.             The best solution to solving installation and
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  62.             configuration issues is to take preventative measures by setting
    63. 

  63.             up logging files beforehand. The log files provide a
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  64.             source of hints and information that can be used to figure out
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  65.             what went wrong and how to fix the problem.
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  66.           </p>
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  67. </div>
    68. 

  68. </div>
    69. 

  69. <div class="sect1" lang="en">
    70. 

  70. <div class="titlepage"><div><div><h2 class="title" style="clear: both">
    71. 

  71. <a name="id2603388"></a>Incrementing and Changing the Serial Number</h2></div></div></div>
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  72. <p>
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  73.           Zone serial numbers are just numbers &#8212; they aren't
    74. 

  74.           date related.  A lot of people set them to a number that
    75. 

  75.           represents a date, usually of the form YYYYMMDDRR.
    76. 

  76.           Occasionally they will make a mistake and set them to a
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  77.           "date in the future" then try to correct them by setting
    78. 

  78.           them to the "current date".  This causes problems because
    79. 

  79.           serial numbers are used to indicate that a zone has been
    80. 

  80.           updated.  If the serial number on the slave server is
    81. 

  81.           lower than the serial number on the master, the slave
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  82.           server will attempt to update its copy of the zone.
    83. 

  83.         </p>
    84. 

  84. <p>
    85. 

  85.           Setting the serial number to a lower number on the master
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  86.           server than the slave server means that the slave will not perform
    87. 

  87.           updates to its copy of the zone.
    88. 

  88.         </p>
    89. 

  89. <p>
    90. 

  90.           The solution to this is to add 2147483647 (2^31-1) to the
    91. 

  91.           number, reload the zone and make sure all slaves have updated to
    92. 

  92.           the new zone serial number, then reset the number to what you want
    93. 

  93.           it to be, and reload the zone again.
    94. 

  94.         </p>
    95. 

  95. </div>
    96. 

  96. <div class="sect1" lang="en">
    97. 

  97. <div class="titlepage"><div><div><h2 class="title" style="clear: both">
    98. 

  98. <a name="id2603405"></a>Where Can I Get Help?</h2></div></div></div>
    99. 

  99. <p>
    100. 

  100.           The Internet Systems Consortium
    101. 

  101.           (<acronym class="acronym">ISC</acronym>) offers a wide range
    102. 

  102.           of support and service agreements for <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym> servers. Four
    103. 

  103.           levels of premium support are available and each level includes
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  104.           support for all <acronym class="acronym">ISC</acronym> programs,
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  105.           significant discounts on products
    106. 

  106.           and training, and a recognized priority on bug fixes and
    107. 

  107.           non-funded feature requests. In addition, <acronym class="acronym">ISC</acronym> offers a standard
    108. 

  108.           support agreement package which includes services ranging from bug
    109. 

  109.           fix announcements to remote support. It also includes training in
    110. 

  110.           <acronym class="acronym">BIND</acronym> and <acronym class="acronym">DHCP</acronym>.
    111. 

  111.         </p>
    112. 

  112. <p>
    113. 

  113.           To discuss arrangements for support, contact
    114. 

  114.           <a href="mailto:info@isc.org" target="_top">info@isc.org</a> or visit the
    115. 

  115.           <acronym class="acronym">ISC</acronym> web page at
    116. 

  116.           <a href="http://www.isc.org/services/support/" target="_top">http://www.isc.org/services/support/</a>
    117. 

  117.           to read more.
    118. 

  118.         </p>
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  128. <td width="40%" align="right"> <a accesskey="n" href="Bv9ARM.ch09.html">Next</a>
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  129. </td>
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  131. <tr>
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  132. <td width="40%" align="left" valign="top">Chapter 7. <acronym class="acronym">BIND</acronym> 9 Security Considerations </td>
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  133. <td width="20%" align="center"><a accesskey="h" href="Bv9ARM.html">Home</a></td>
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  134. <td width="40%" align="right" valign="top"> Appendix A. Appendices</td>
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