INTERNET COMMON SHARE CONNECTION METHOD AND ITS SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an Internet common share connection system that permits users within a prescribed management zone to always connect with the Internet by using unique domains and economically provides electronic mail and WWW environments to each user by using the unique domains. SOLUTION: An external DNS(Domain Name System) server 21 informs other site about global IP address according to the name resolution from the other site, a FW(Firewall) 5 transfers a received mail to a mail server, the mail server requests an internal DNS server to resolute the name of the received mail, the internal DNS server retrieves a private IP address in response to the request of the name resolution and informs the mail server about the retrieved address and the mail server transfers the mail of a user with the IP address received from the internal DNS server.