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Managing Cisco Network Security, 2nd Edition by Syngress

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Chapter 9

Cisco Authentication, Authorization, and Accounting Mechanisms

Introduction

Authentication, authorization, and accounting (AAA) is an architectural framework for providing the independent but related functions of authentication, authorization, and accounting, and is critical to providing secure remote access to both network devices and resources. The AAA framework typically consists of both a client and a server. The AAA client (for example, a router or network access server (NAS)) requests authentication, authorization, and/or accounting services from a AAA server (for instance, a UNIX or ...

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