DNS administrators can use dlint to scan recursively through the domain records of the fully-qualified zone zone , to get a report on any errors therein. You can scan a zone you own, or anyone else’s zone on the Internet. dlint talks directly to a primary or secondary nameserver for the zone, to make sure it’s working with up-to-date information. dlint also suggests ways of fixing problems instead of just complaining about them like other debugging tools. The argument zone should always have an ending period to indicate it is a fully qualified domain name.

By default, dlint recursively traverses the entire hierarchy below the zone specified. The -n option may be used to disable recursive traversal, causing it to only examine the records in the given zone. Note that a zone may or may not contain any number of sub-domains (all of which will be checked with or without this option).

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