The Terminal Access Controller Access Control System+ (TACACS+) protocol is the current generation of the TACACS family. Originally TACACS was developed by BBN Planet Corporation for MILNET, an early military network, but it has been enhanced by Cisco and expanded twice. The original BBN TACACS system provided a combination process of authentication and authorization. Cisco extended this to Extended Terminal Access Controller Access Control System (XTACACS), which provided for separate authentication, authorization, and accounting processes. The current generation, TACACS+, has extended attribute control and accounting processes.

One of the fundamental design aspects is the separation of authentication, authorization, and accounting in ...

Get CompTIA Security+ All-in-One Exam Guide (Exam SY0-301), 3rd Edition, 3rd Edition now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.