Digital Equipment Digital NetRider, Owner'S Manual

Page: 451 / 536

Managing Access Server Security 22-5
Common Terminology Across Security Realms
Security Server
The remote host with which the access server communicates in order to request
authentication clearance during the login process. Each security method (other than
user accounts) defines one or more host processors that can support the authentication
procedure.
RADIUS Accounting
The RADIUS security method supports logging of accounting information. The
accounting information is sent to what is called the accounting host by means of the
accounting service port.
UDP Ports
Each security method has a well-known port (or two) that must be specified to the
access server in order for the UDP connection to be established. When you create a
new realm, it is not usable until you define a secret (and at least one authentication
host) for it. However, the realm will be created with default values (the well-known
ports) for the UDP ports.