Offers general information, reference material, software, news, and links.

ADNS is a free resolver library for C (and C++) programs, released under GNU's General Public License.

Official web site of the DNS root servers. Information, including locations, ASNs, and IPv4 and IPv6 addresses, of the 13 root-servers.net systems.

How to put your latitude and longitude into your DNS configuration, plus some nifty extras, like maps.

This RFC describes the details of the domain system and protocol, and assumes that the reader is familiar with the concepts discussed in a companion RFC, "Domain Names - Concepts and Facilities" [RFC-1034].

Offers information about DNS and the BIND Nameserver Software from ISC. Includes links, manuals, mailing lists, RFCs and download locations.

Offers information about DNSSEC: Security Extensions for DNS. Includes DNSSEC projects, articles, news, developments, presentations, howto's and RFC's.

A free module for Perl for resolving DNS queries.

Nominum provides DNS and DHCP servers and an advanced IP name and address management system.

Offers a diagnostic utility for DNS administrators, and QuickDNS Pro, a DNS server for the Mac.