is a free DNS management suite that takes the pain out of managing DNS. NicTool includes an attractive web interface for users, admins, and clients to access and update DNS zone data. NicTool also includes a rich API for provisioning systems and scripts to interact with. All zone data is stored in SQL and extracted by export scripts to the DNS server of choice (tinydns, BIND, PowerDNS).
DNS updates are parsed for validity before being accepted. All changes are logged and it is easy to determine who made a change and when. Permissions are extremely granular. You can delegate permission for a zone to another user, or group of users. You can even delegate only specific zone records to other users or groups. You can grant others permission to publish to your DNS servers, but not the ability to alter them.
NicTool is the holy grail of DNS management packages. It works great for managing one zone, or a million of them. You can learn more about NicTool on the NicTool Web Site