Description from the publisher
DDNSServ allows you to Run your own DDNS, or Dynamic DNS server. The Server suite is fully featured with full support for MX, CNAME and even NS records. Dual functionality for paying versus trial users, Service Pricing, Accounting, User management is built in and completely configurable. Includes all the features you would find at the leading DDNS Servers. Package includes State of the art Client software as well.