A good list of server packages for all major operating systems. DynIP Provides DDNS, allowing you to put the server for your domain name on a dial-up connection. Use it to host your own Web site, FTP server, MP3 station and more. Men and Mice Offers a diagnostic utility for DNS administrators, and QuickDNS Pro, a DNS server for the Mac. Meta IP Enterprise level DNS management software to simplify complex DNS configurations.
Client runs on all major operating systems.
ODS - Open Domain Server Provides free DNS services, including dynamic dns, but only as a subdomain of their dozen or so domains. Server Planning for DNS A description of how to decide how powerful your Windows NT DNS server needs to be. Simple DNS Plus Integrated DNS and DHCP server. Includes a FAQ, reasons for having a DNS provider, and a glossary of DNS terms. TZO Features include offline webpage, signon and signoff IP address control, and new change domain and change email functions.