1. Checks dns zone information using nameserver lookups This program analyzes any DNS zone you specify, and reports any problems it finds by displaying errors and warnings. Then it descends recursively to examine all zones below the given one (this can be disabled with a command- line option). You don't have to feed any BIND conffiles to Dlint. Dlint uses nameserver calls to gather information. Designed for Unix, dlint is written in Bourne Shell and Perl. You may try it online at http://www.domtools.com/dns/dlint.shtml (this server imposes a timeout period; to lint a big zone, you should install dlint yourself and use it locally - that's what this package is for). From Debian 3.0r0 APT

2. Internet Domain Name System (DNS) error checking utility From whatis