A first computer establishes a connection between a second computer and the first computer when a specific request for access to a specific path from the second computer is accepted. The first computer transmits to the second computer a script for enabling the second computer to perform a proxy process of accepting a database access request for access to a database from an application to be accessed by the second computer, accessing the database, and acquiring an access result from the database. Then, the first computer receives a database access result from the second computer, and outputs the result to the application.