| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem of appropriate information being unable to be provided according to a user, since the same IP address is answered with respect to all the users to the acquisition request of an IP address by a specific host name, in a DNS server or the like. SOLUTION: A DNS server 1 has a plurality of IP addresses corresponding to a host name, and an access information storage section 11, where user identification information for allowing access to each IP address, is stored. An address specifying section 14 refers to the access information storage section 11 and specifies the IP address, corresponding to a user according to the identification information of the user and the host name for answering to the user.</p> |
