Keeps your dynamic IP address updated with your dynamic DNS provider. Control interface allows for easy adding and removing of domains and update URLs. Compatible with; Afraid.org, DNSExit, Zonedit, No-IP, DynDns, and most dynamic DNS providers. Dynamic FreeDNS can use the router's IP address if the router is capable, or can use an external (included) script to get the server's Internet protocol address. It compares this address with the i.p. address stored in the database, which is the last IP address that the server updated to. If they're the same, it's done. If not, it then sends the update URLS and writes a new IP address into the database.