FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -TACACS (Terminal Access Controller Access Control System) is a security protocol that provides centralized validation of users who are attempting to gain access to a router or NAS. TACACS+ provides separate authentication, authorization and accounting services.

Detailed explanation-2: -TACACS+ Terminal Access Controller Access-Control System Plus, or TACACS+, is one of the most capable and flexible AAA protocols and offers security benefits over RADIUS-such as packet encryption-and supports a wider range of extensibility.

Detailed explanation-3: -TACACS+ Overview TACACS+ implementation provides for separate and modular authentication, authorization, and accounting facilities. It allows for a single access control server (referred to as the TACACS+ daemon) to provide authentication, authorization, and accounting to the network access server (NAS) independently.

Detailed explanation-4: -The final plank in the AAA framework is accounting, which measures the resources a user consumes during access. This can include the amount of system time or the amount of data a user has sent and/or received during a session.

Detailed explanation-5: -AAA stands for authentication, authorization, and accounting. AAA is a framework for intelligently controlling access to computer resources, enforcing policies, auditing usage, and providing the information necessary to bill for services.