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Understanding AAA Network Components for Secure Access Control

Gain insights into AAA components like authentication, authorization, and accounting. Explore how NAS, RADIUS, and TACACS+ protocols work to secure user access and device activities on networks. Learn how AAA servers communicate with Windows domain controllers or Unix servers for enhanced security.

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Understanding AAA Network Components for Secure Access Control

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  1. Chapter 16 AAA

  2. AAA Components • AAA server • Authenticates users accessing a device or network • Authorizes user to perform specific activities • Performs accounting of device or user activities • Network Access Server (NAS) or Access Device • A router, switch, or other network device that can perform AAA functions on users or devices connecting to it • RADIUS or TACACS+ • Protocols that can be used by an access device to communicate with the AAA server

  3. AAA Network Components Note: AAA server may communicate with a Windows domain controller or a Unix server that has the user password database

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