| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To determine whether the environment of a terminal connected with a network is internal or external. <P>SOLUTION: A system for determining communication limit in an external network includes a database 33 in which the information of an internal domain name and the address information of a specific WWW server 22 being accessed by a client PC 11 is registered previously, a domain name comparison module 32 for comparing the information of domain name of the client PC 11 which is acquired from a DNS server 21 upon connection with a network and the information of an internal domain name registered in the database 33 and then determining whether the client PC 11 is on an enterprise network 2 based on the fact whether both domain names coincide, and a communication control module 31 for permitting communication if a determination is made that the client PC 11 is on an enterprise network 2, and for interrupting the communication, if determined that the client PC 11 is not on the enterprise network 2. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
