| 摘要 |
<p>An object of the present invention is to achieve technology enabling access to a target real server, whichever the load balancer via which access is made, and to achieve access to the real server while guaranteeing the security of the real server information. Key information is held in a load balancer, an encoded server identification information which is encoded with the key information is included in an HTTP request received by the load balancer, the encoded server identification information is included in a response message from the real server to the client terminal and in a subsequent HTTP request, and access to the real server identified by decoding the server identification information using the key information is achieved when the load balancer receives the subsequent HTTP request, whereby a HTTP request can be made to the determined real server, while guaranteeing security even if access is made via a different load balancer.</p> |
