Patent ID: 7818437

Claim:
A system for managing a connection between a client terminal connected to an external network and a host computer installed in an internal network segment, the system comprising: a reverse proxy server configured to receive a connection request from the client terminal and to relay data between the client terminal and the host computer using a session identifier (“ID”); and a management server installed in the internal network segment configured to, in response to the connection request from the client terminal via the reverse proxy server, decide whether a connection to the host computer is permitted based on host PC data having a host PC name of the host computer and a service name distributable by the host computer, and configured to generate the session ID and notify the session ID to both the reverse proxy server and the host computer, and, when the connection is permitted, to initiate the connection from the host computer to the client terminal; wherein the host computer sends service data and the session ID to the reverse proxy server after receiving the session ID from the management server, wherein the reverse proxy server relays the service data from the host computer to the client terminal, and in response to data received from the client terminal, relays the data received from the client computer to the host computer with the session ID.