
Terminal Access Controller Access-Control System (TACACS, usually pronounced like tack-axe) refers to a family of related protocols handling remote authentication and related services for networked access control through a centralized server. The original TACACS protocol, which dates back to 1984, was used for communicating with an authentication ...
Found on
http://en.wikipedia.org/wiki/TACACS

Offers authentication, accounting, and authorization.
Found on
http://www.comptechdoc.org/independent/networking/cert/netterms.html

Terminal Access Controller Access Control System. Authentication protocol, developed by the DDN community, that provides remote access authentication and related services, such as event logging. User passwords are administered in a central database rather than in individual routers, providing an easilyscalable network security solution.
Found on
https://www.encyclo.co.uk/local/22803
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