HP-UX AAA Server A.08.00.01 Administrator's Guide

RADIUS
Client
A NAS or other device that sends requests to an AAA server.
RAS Remote Access Server.
Realm A realm is a logical group of users, who usually can be authenticated using one particular method.
Grouping users into realms simplifies the management of those users in a distributed environment.
For example, an ISP’s users may be from different organizations located in different cities. Each
organization already has one way or another to authenticate its users and each corresponds to a
realm. Each realm would be responsible for managing its users, providing authentication and
authorization for their access requests. A realm has a name that looks very much like a domain
name, but they bear different meanings. Realms are only used by the AAA Server to determine
where an authentication request should be sent and what kind of authentication to request, etc.
Naming a realm with its domain name simplifies things for the users, since their access ids will
then look the same as their e-mail addresses. A realm may also have multiple aliases, providing
a way to shorten long realm names.
Remote
Access Dial In
User Service
An authentication and accounting protocol defined by the IETF in a series of RFCs, abbreviated
as RADIUS.
Remote
Access Server
A service that allows remote clients running Microsoft Windows or Windows NT to dial in to a
network, abbreviated as RAS.
Remote Server In the context of a proxied Access-Request, the remote server is the AAA server that receives the
request from the forwarding server. The remote server authenticates the request and sends a reply
to the forwarding server.
Request For
Comment
The basis for an IETF standard, abbreviated as RFC.
RFC Request For Comment.
SAT Simultaneous access token.
Server
Manager
A Web-based graphical user interface which provides an interface between an administrator and
the AAA servers. In addition to creating, modifying, and deleting entries in many of the server’s
configuration files, an administrator may start and stop the AAA server, access the server’s status
and system time, retrieve information from accounting and session logs, and terminate sessions.
Service The RADIUS client provides a service to the dial-in user, such as PPP or Telnet.
Session Each service provided by the client to a dial-in user constitutes a session, with the beginning of
the session defined as the point where service is first provided and the end of the session defined
as the point where service is ended. A user may have multiple sessions in parallel or series if the
RADIUS client supports that feature.
Simple
Network
Management
Protocol
(SNMP)
SNMP provides a mechanism for a centrally located management workstation to monitor the
activity of remote computers and network services.
Simultaneous
Access Token
The concept of token helps define and enforce policies in regard to modem pool sharing among
various participating institutions. A simultaneous access token is required when a user accesses
a non-priority modem. Tokens are allocated to realms and are grouped into pools. The total
number of tokens a realm has is defined by the HP-UX AAA server so that the LAS may control
simultaneous use, abbreviated as SAT.
SLA Service Level Agreement.
598 Glossary of Terms