RADIUS and TACACS+

Question 1

Goal of AAA services

Answer 1

Authentication
Authorisation
Accounting

Question 2

TACACS+ vs RADIUS

Answer 2

Advantages:
* More control than RADIUS
* All AAA packets encrypted (only passwords encrypted on a RADIUS server)
* Uses TCP rather than UDP

Disadvantages:
* Can only be used with Cisco equipment (protocol is propriety to Cisco)
* Provides less accounting support than a RADIUS server

Question 3

TACACS+ full term

Answer 3

Terminal Access Controller Access-Control System Plus