CISCO AAA TACACS

TACACS+ is a security application which centrally validates users trying to access a router or a network access server. TACACS+ utilities are normally stored on the Unix or Windows NT workstation in a TACACS+ daemon database. The following services can be offered by TACACS+, operated by the AAA security services:

Authentication—Full, is identification by login and password, challenge and answer and message service.
Authorization, offers fine control over user abilities during user session, such as auto commands, access control, the length of session or protocol support, but not limited to these.
Accounting, is when the TACACS+ daemon gathers and sends billing, auditing and reporting material. The accounting facility may be used by network administrators to monitor the user operation for safety auditing or provide user billing information.

Now, before we practice how to apply AAA Tacacs based on the picture above, download the file for this page edit the file needed. So please, follow the command below,

Linux