THE SEVER, THE SYSTEM AND THE METHOD FOR PROVIDING DYNAMIC DOMAIN NAME SERVICE

摘要

PURPOSE: A dynamic domain name service providing server, a system thereof, and a method thereof are provided to distribute load of dynamic domain name server due to health check. CONSTITUTION: A main DDNS(Dynamic Domain Name Server)(200) registers equipment. The main DDNS answers to a client query which requests a dynamic IP address of the equipment. One or more sub DDNSs(300) updates an equipment state in response to a state notification message from the registered equipment. The main DDNS includes a sub DDNS allocation unit and a sub DDNS notification unit. The sub DDNS notification unit notifies a message including an address of allocated sub DDNS to the equipment.