User manual

RADIUS Authentication and Accounting E-1
Appendix E
RADIUS Authentication and
Accounting
Remote Authentication Dial In User Service (RADIUS) is a
distributed security system that secures remote access to
networks and network services against unauthorized access.
This chapter discusses:
• RADIUS Overview
• Performing Authentication
• RADIUS Security Server User Table Entries
• Configuring RADIUS Authentication from the CLI
• Configuring RADIUS Accounting from the CLI
RADIUS Overview
The NETServer provides user authentication and session
accounting locally using a user table defined by the system
manager. In addition, you can use the RADIUS authentication
server to provide centralized authentication services on your
network.
RADIUS Authentication
The RADIUS authentication process consists of two pieces: an
authentication server and NETServer RADIUS client. The
authentication server is installed on a machine on your network.
The NETServer acts as a RADIUS client. The NETServer sends
authentication requests to the authentication server, and acts on
responses sent back from the authentication server.