| 摘要 |
When a firewall receives, from a mobile terminal via the Internet, an access request which designates a URL including a http, a domain name containing a host name, a service name, a machine name, and a specific port number, the firewall outputs the request to a corresponding port of a relay server. The relay server sends an authentication page to the request source terminal to cause the user to input authentication data, and causes an authentication server to authenticate the request source user on the basis of the input authentication data. If authentication succeeds, the relay server checks whether the authenticated user can receive a service represented by the service name and machine name in the URL. If the user can receive the service, the relay server sets a session, and grants request/response communication between the mobile terminal of the request source and the request destination in the session.
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