| 摘要 |
PROBLEM TO BE SOLVED: To provide a Wab by means of an inquiry, based on a host name from a user terminal, even in the case of a client terminal where an Ip address is changed. SOLUTION: A Web server 10 receives client information containing an IP address and an arbitrary host name assigned to a client terminal 40 from the client terminal 40 by an ISP 60, transmits the information to a DNS server 20 and registers it. The DNS server 20 for managing a complete modification domain name to be assigned by the ISP 60 answers with the correspondent IP address to the inquiry of the host name from a user terminal 50.
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