We are developing an authentication system, Opengate, for public terminals, wired and wireless mobile terminals carried by users. At the first WWW request by user, Opengate shows an authentication form to the WWW browser and controls a firewall system. The important feature of the system is that the system does not require any setting on user’s terminals and any registrations except usual user registrations. Many systems should be operated over whole campus, because users use the network with their mobile terminals.To reduce the cost for operation, we suggest an operation method with diskless boot mechanism. By the diskless operation method, we can reduce the cost for introducing and operating the system. It also simplifies the procedure for maintaining the system and collecting user logs.
