Tacacs server in Cisco

jskfan used Ask the Experts™
If I am not wrong , In Cisco they use Tacacs server as well as Radius server  as centralized authentication database .
Radius server can be installed on windows server or other OS. However I am not sure if Tacacs server is installed on Windows or linux or on cisco router .

any explanation will be very much appreciated.

Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
Technical Systems Analyst
TACACS(+) and RADIUS are two different types of authentication protocols- both of which would be installed and configured on a central server (Windows or otherwise).

TACACS was originally developed to control access to UNIX devices. Cisco developed TACACS+ for use as an Authentication, Authorization, and Accounting (AAA) protocol that is commonly used today with Cisco ACS for controlling access to switch/router command-line interfaces.

Here is a great article with an overview of each:


Thank you Matt

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial