Recording medium storing control program and communication system

Abstract

A computer readable recording medium storing a control program causing a computer to execute a process in which an authentication proxy terminal carries out authentication on behalf of a client terminal using a browser to one or more server terminals, the process which includes: performing user authentication between the client terminal and the authentication proxy terminal before an access from the client terminal using the browser to the server terminal; if the user authentication is properly performed, executing proxy authentication to the server terminal on behalf of the client terminal; and sending to the client terminal a script file that controls the browser so as to access the server terminal without involving the authentication proxy terminal at a time of the access using the browser from the client terminal to the server terminal after the proxy authentication is properly executed.