To manage sessions between a client apparatus and a plurality of sever devices.Provided is a system including: a receiver for receiving, as a proxy for each of the plurality of server apparatuses, a request from the client apparatus to each of the plurality of server apparatuses; a determination unit for determining, upon receipt of the request from the client apparatus to any of the plurality of sever apparatuses, whether sessions established between the client apparatus and the plurality of server apparatuses are maintained; a disconnection unit for disconnecting, on condition that a session between the client apparatus and at least any one of the plurality of server apparatuses is already disconnected, the sessions established between the client apparatus and the server apparatuses different from the at least any one of the plurality of server apparatuses; and a forward unit for forwarding, on condition that the sessions established between the client apparatus and all of the plurality of server apparatuses are maintained, the received request to the destination server apparatus for the request.