Internal Program Version: Net::Nslookup  2.40.0.5.42.0

Net::Nslookup provides the capabilities of the standard UNIX command
line tool nslookup(1). Net::DNS is a wonderful and full featured module,
but quite often, all you need is (nslookup host). This module provides
that functionality.

Net::Nslookup exports a single function, called nslookup. nslookup can
be used to retrieve A, PTR, CNAME, MX, NS, SOA, TXT, and SRV records.

http://search.cpan.org/~darren/Net-Nslookup-2.04