Bv9ARM.ch08.html revision 0707a8c04f0d350cb964ce9db07c3ed66f7442ea
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>Troubleshooting</TITLE
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweNAME="GENERATOR"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCONTENT="Modular DocBook HTML Stylesheet Version 1.73
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweTITLE="BIND 9 Administrator Reference Manual"
a9478106a12424322498e53cf7cd75bd8a4d6004Yuri PankovREL="PREVIOUS"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweTITLE="BIND 9 Security Considerations"
a9478106a12424322498e53cf7cd75bd8a4d6004Yuri PankovTITLE="Appendices"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="chapter"
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c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweSUMMARY="Header navigation table"
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c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>BIND 9 Administrator Reference Manual</TH
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweVALIGN="bottom"
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c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="chapter"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>Chapter 8. Troubleshooting</A
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>Table of Contents</B
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>Common Problems</A
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>Incrementing and Changing the Serial Number</A
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>Where Can I Get Help?</A
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="sect1"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="sect1"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweNAME="AEN4704"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>8.1. Common Problems</A
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="sect2"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="sect2"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweNAME="AEN4706"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>8.1.1. It's not working; how can I figure out what's wrong?</A
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>The best solution to solving installation and
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe configuration issues is to take preventative measures by setting
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe up logging files beforehand. The log files provide a
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe source of hints and information that can be used to figure out
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe what went wrong and how to fix the problem.</P
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="sect1"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="sect1"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweNAME="AEN4709"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>8.2. Incrementing and Changing the Serial Number</A
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>Zone serial numbers are just numbers-they aren't date
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe related. A lot of people set them to a number that represents a
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe date, usually of the form YYYYMMDDRR. A number of people have been
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe testing these numbers for Y2K compliance and have set the number
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe to the year 2000 to see if it will work. They then try to restore
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe the old serial number. This will cause problems because serial
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe numbers are used to indicate that a zone has been updated. If the
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe serial number on the slave server is lower than the serial number
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe on the master, the slave server will attempt to update its copy of
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe the zone.</P
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>Setting the serial number to a lower number on the master
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe server than the slave server means that the slave will not perform
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe updates to its copy of the zone.</P
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>The solution to this is to add 2147483647 (2^31-1) to the
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe number, reload the zone and make sure all slaves have updated to
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe the new zone serial number, then reset the number to what you want
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe it to be, and reload the zone again.</P
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="sect1"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="sect1"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweNAME="AEN4714"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>8.3. Where Can I Get Help?</A
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>The Internet Software Consortium (<SPAN
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="acronym"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>) offers a wide range
a9478106a12424322498e53cf7cd75bd8a4d6004Yuri Pankov of support and service agreements for <SPAN
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="acronym"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="acronym"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe> servers. Four
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe levels of premium support are available and each level includes
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe support for all <SPAN
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="acronym"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe> programs, significant discounts on products
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe and training, and a recognized priority on bug fixes and
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe non-funded feature requests. In addition, <SPAN
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="acronym"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe> offers a standard
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe support agreement package which includes services ranging from bug
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe fix announcements to remote support. It also includes training in
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="acronym"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="acronym"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>To discuss arrangements for support, contact
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweHREF="mailto:info@isc.org"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweTARGET="_top"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>info@isc.org</A
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe> or visit the
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="acronym"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe> web page at <A
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweTARGET="_top"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe to read more.</P
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c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweSUMMARY="Footer navigation table"
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c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweCLASS="acronym"
a9478106a12424322498e53cf7cd75bd8a4d6004Yuri Pankov> 9 Security Considerations</TD
a9478106a12424322498e53cf7cd75bd8a4d6004Yuri PankovALIGN="center"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard LoweALIGN="right"
c10c16dec587a0662068f6e2991c29ed3a9db943Richard Lowe>Appendices</TD