ポート番号特定システム、ポート番号特定システム制御方法およびその制御用プログラム

摘要

A port number file verification function assesses whether a port number file is present in an administrated machine side storage module. If not present in the administrated machine side storage module, or if present in the administrated machine side storage module and communication with a port number of an administration server which is recorded in the present port number file is not possible, a port number file acquisition directive function directs a file acquisition unit to acquire a port number file of the administration server, the file acquisition unit which receives the directive requests the port number file via the administration server and a well-known port, and a port number identification function identifies a port number of the administration server on the basis of the content of the port number file which is acquired by the request.