Nixu Software Oy Ltd
- Develops and markets virtualization-ready, secure DNS and IP addressing solutions distributed as software appliances.
- http://www.nixusoftware.com/

Request For Comment 1035
- 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].
- http://tools.ietf.org/html/rfc1035

ISC's BIND
- The developer's site for the Berkeley Internet Name Daemon at the Internet Software Consortium
- http://www.isc.org/sw/bind/

Country Coded Top Level Domains (ccTLD's)
- The official list of all country specific TLD's, including .us, .uk, and .tv, plus links to where you can apply for a domain in that country.
- http://www.iana.org/root-whois/

Net::DNS
- A free module for Perl for resolving DNS queries.
- http://www.net-dns.org/

DNS and E-mail Checks
- Pingability.com is a website that runs checks of your DNS and E-mail setup.
- http://pingability.com/zoneinfo.jsp

DNSSEC Zone Key Tool
- A toolkit for secure DNS key management and zone maintenance.
- http://www.hznet.de/dns/zkt/

Root Server Technical Operations Assn
- Official web site of the DNS root servers. Information, including locations, ASNs, and IPv4 and IPv6 addresses, of the 13 root-servers.net systems.
- http://www.root-servers.org/

DNS & BIND Resources
- Offers information about DNS and the BIND Nameserver Software from ISC. Includes links, manuals, mailing lists, RFCs and download locations.
- http://www.bind9.net/

DNSSEC - DNS Security Extensions
- Offers information about DNSSEC: Security Extensions for DNS. Includes DNSSEC projects, articles, news, developments, presentations, howto's and RFC's.
- http://www.dnssec.net/

Adminschoice
- A brief document that describes how to set up a Unix DNS server using BIND.
- http://www.adminschoice.com/docs/domain_name_service.htm

Fusion DNS - Embedded Source Code
- Fusion DNS software is a resolver for embedded devices that is comprised of a library of easy-to-use routines that a client application can call to perform the domain name to IP address translation function.
- http://www.dspos.com/DSPOSWeb/app_protocols/fusion_DNS.htm

NetworkClue - DNS & DNS Servers
- An overview on how DNS works and tutorials for installing and configuring DNS servers on Linux and Microsoft Servers.
- http://www.networkclue.com/internet/DNS

Secure BIND Template v3.4
- Detailed explanation as to how to deploy a secure BIND configuration.
- http://www.cymru.com/Documents/secure-bind-template.html

Securing an Internet Name Server
- Paper discussing general name server security, with a focus on BIND. By Allen Householder and Brian King of CERT/CC. [PDF]
- http://www.cert.org/archive/pdf/dns.pdf

Incognito Software Inc.
- Incognito Software Inc. develops DNS management tools for the enterprise and service provider markets. Offers secure, scalable, and fault-tolerant DNS management software.
- http://www.incognito.com

DNS Resources Directory (DNSRD)
- Offers general information, reference material, software, news, and links.
- http://www.dns.net/dnsrd/

Secondary DNS Exchange
- A list of people who are looking to swap secondary DNS servers.
- http://ns2exchange.com/

Howto Become A Totally Small Time DNS Admin
- Plain text instructions on setting up administration under Linux.
- http://www.ibiblio.org/pub/Linux/docs/howto/DNS-HOWTO

Nominum
- Nominum provides DNS and DHCP servers and an advanced IP name and address management system.
- http://www.nominum.com

XBill DNSJava
- A DNS resolver written in java.
- http://www.xbill.org/dnsjava/

Tinydns and Dnscache
- A replacement for BIND - Tinydns does the authoritative nameserving, Dnscache does the recursive lookups.
- http://tinydns.org/

ADNS
- ADNS is a free resolver library for C (and C++) programs, released under GNU's General Public License.
- http://www.chiark.greenend.org.uk/~ian/adns/

DNS Oversimplied: How to Check Your DNS
- Step-by-step instructions on how to verify that your DNS is working properly and is error-free, even if your ISP handles your DNS.
- http://www.rscott.org/dns/

Men and Mice
- Offers a diagnostic utility for DNS administrators, and QuickDNS Pro, a DNS server for the Mac.
- http://www.menandmice.com/

Simple DNS Plus
- DNS server software for Windows 9x/NT/2000. Free trial version, screenshots, client testimonials, FAQ, tutorials.
- http://www.jhsoft.com

Putting Locations into the DNS
- How to put your latitude and longitude into your DNS configuration, plus some nifty extras, like maps.
- http://www.ckdhr.com/dns-loc/

gTLD-MoU
- Memorandum of Understanding on Generic Top-Level Domains. Includes details such as why certain Top Level Domains (such as .biz) are chosen.
- http://www.gtld-mou.org

BIND 8 for NT
- Provides "quick and dirty" instructions for setting up the BIND DNS server on Windows NT, including sample zone files.
- http://bind8nt.meiway.com