SERVER, CLIENT, LICENSE MANAGEMENT SYSTEM, AND LICENSE MANAGEMENT METHOD

摘要

A server carries out a network position check process for a client which requests to use a content, and the server generates a vicinity check information including a requirement for authorizing omission of the network position check process for the client when the client thereafter requests to use the content again after the network position check process determines that the client is located in a local area network where the server belongs. At least one of the server and the client retains the vicinity check information to determine based on the vicinity check information whether the network position check process can be omitted when the client thereafter requests to use the content again.