This port contains a subset of the DJBDNS package.
It includes several useful Domain Name System (DNS) tools:

- dnsfilter: a parallel IP-address-to-host-name converter
- dnsip, dnsipq, dnsname, dnstxt, and dnsmx: simple
  command-line interfaces to DNS
- dnsq, dnstrace, dnstracesort: DNS debugging tools

WWW: http://cr.yp.to/djbdns.html