Cisco Systems OL-24201-01 manual O S S a R Y, GL-1

G L O S S A R Y

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AAA	Authentication, authorization, and accounting (AAA) is a term for a framework for intelligently
	controlling access to computer resources, enforcing policies, auditing usage, and providing the
	information necessary to bill for services. These combined processes are considered important for
	effective network management and security. A system in IP-based networking to control what computer
	resources users have access to and to keep track of the activity of users over a network.
AAA client IP	An IP address of the AAA client, used to configure the AAA client in Access Control Server (ACS) to
address	interact with the network device. To represent multiple network devices, specify multiple IP addresses.
	Separate each IP address by pressing Enter.
AAA server	A server program that handles user requests for access to computer resources and, for an enterprise,
	provides authentication, authorization, and accounting (AAA) services. The AAA server typically
	interacts with network access and gateway servers and with databases and directories containing user
	information. The current standard by which devices or applications communicate with an AAA server
	is the Remote Authentication Dial-In User Service (RADIUS).
access	The capability to get to what you need. Data access is being able to get to (usually having permission
	to use) particular data on a computer.
Access Control	Ensures that resources are only granted to those users who are entitled to them.

Access Control List A mechanism that implements access control for a system resource by listing the identities of the

(ACL)		system entities that are permitted to access the resource.
Access Control		A AAA server that performs authentication, authorization, and accounting to manage devices in a
System (ACS)		network.
Access Control		A security service that provides protection of system resources against unauthorized access. The two
Service		basic mechanisms for implementing this service are ACLs and tickets.
AP		access point. The Hub of a wireless network. Wireless clients connect to the access point, and traffic
		between two clients must travel through the access point.
access policies		The policies that limit access to the ACS web interface by IP address, TCP port range, and secure socket
		layer (SSL).
AR		access registrar . A RADIUS-compliant, access policy server designed to support the delivery of dial,
		ISDN, and new services including DSL, cable with telco-return, wireless and Voice over IP
ADR		accessibility design requirements. Provides detail on how to design accessible products, web sites, and
		documentations
		User Guide for Cisco Secure Access Control System 5.3
	OL-24201-01		GL-1