Unix Tip: Cleaning up DNS

By Sandra Henry-Stocker

I recently had an occasion to help a friend update her DNS configuration on a system responsible for a small test domain. Since she seldom touches the zone files on the server, never mind the main configuration file, I suggested that we pay attention to the messages that the process writes to the messages file to highlight any configuration problems that existed in the long neglected named.conf file.

While we didn't run into many problems and the DNS server was working, we noted a number of minor configuration problems -- some resulting in errors and others generating warnings -- which we systematically identified and then resolved.

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