The DNSdoctor utility
This utility will perform tests of a DNS zone or domain name. There are two versions available for download. For the purposes of this column, I'm going to stick to the DNSdoctor for the command line, rather than the Web-based version. There's nothing wrong with the Web-based version, of course; I just prefer command-line tools whenever possible. There's a demo of the Web-based interface available for anyone who's interested.
The first order of business, naturally, is to install dnsdoctor. Debian users can grab the package dnsdoctor; other Linux users will need to grab the source. There's also a package for FreeBSD users on the site.
By Joe "Zonker" Brockmeier at UNIX Review.
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