RSA Security 6.1 manual Radius Servers

	information about users and administering multiple security systems across
	complex networks.
RAS	Remote Access Server. Network device that accepts connection requests from
	remote users, authenticates users through RADIUS, and routes users onto the
	network. Identical in meaning to NAS.
realm	A logical grouping of authentication servers (Primary RADIUS Server and Replica
	RADIUS Servers).
Replica	A server that participates in balancing the load of user authentication requests
RADIUS Server	within a realm. A Replica RADIUS Server’s database is periodically synchronized
	with the database on the Primary RADIUS Server. Compare Primary RADIUS
	Server.
return list	An attribute that RSA RADIUS Server returns to a RAS in an Access-Accept
attribute	message when a user is authenticated. Return list attributes provide additional
	parameters, such as VLAN assignment or IP address assignment, that the RAS
	needs to connect the user.
RSA	A host running RSA Security proprietary RSA SecurID software, which identifies
Authentication	and authenticates users by validating their RSA SecurID passcodes.
Manager
SecurID	Security token system that allows remote-access users to generate a
	pseudo-random value they can forward as part of an authentication sequence.
session ID	Session Identifier. A string of characters uniquely identifying the session.
shared secret	An encryption key known only to the sender and receiver of data.
SNMP	Simple Network Management Protocol.
software token	A software utility running on a computer or digital assistant that generates a
	tokencode. Compare token.
supplicant	The client in an 802.1X-authenticated network.
time drift	The process by which two clocks that are initially synchronized gradually display
	different times.
token	A physical device, such as an RSA SecurID card or key fob, that displays a
	tokencode. A user’s token is one of the factors in the RSA SecurID authentication
	system. See PIN.

102 Glossary September 2005