Review
TACACS is a Cisco® protocol for authentication, authorization, and accounting. TACACS (Terminal Access Controller Access Control System) has enjoyed three versions, TACACS, XTACACS, and the lastest version TACACS.
TACACS can be used in three separate modes - authentication, authorization, and accounting (AAA). RADIUS combines authentication and authorization in the same packet exchange while TACACS does each step separately in different exchanges. |
