TACACS+
A standard which defines the interfaces between a network access server, such as a firewall or a remote access server and a system which provides authentication, authorization, and accounting services. A TACACS+ server is a system that provides these services and supports the standard TACACS+ interfaces. TACACS+ was largely developed by Cisco Systems. Also see an alternative to TACACS+ called RADIUS. (See firewall, authentication, and authorization in the hard copy dictionary.)
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