The dnsutl package is a bunch of programs I wrote to make using DNS easier. These include: dns-rev Take the forward DNS mapping and generate the reverse mapping. dns-hosts Take the forward DNS mapping and generate the /etc/hosts file. dns-ng Take the forward DNS mapping and generate the /etc/netgroup file. All of these programs are both faster than shell scripts, and more robust when faced with all the peculiar semantics of DNS resource files. WWW: http://www.canb.auug.org.au/~millerp/dnsutl/