NicTool
NicTool is a free DNS management suite that simplifies the management of DNS data. NicTool includes a powerful web interface for users, admins, and clients to access and update their DNS zone data. It also includes a full-featured API for provisioning systems. Data is stored in MySQL and is exported to the DNS server of choice: tinydns, BIND, PowerDNS, MaraDNS, or NSD.[1]
Updates are all parsed for validity before being accepted. All changes are logged and it's easy to research log history. Permissions are granular. Zones can be delegated to users, or group of users. Individual zone records can also be delegated. You can grant others permission to safely publish to your DNS servers.[1]