RADIUS meaning in Information Technology ?

Answer: What is Remote Authentication Dial In User Service mean?

Remote Authentication Dial-In User Service (RADIUS) is a networking protocol that provides centralized authentication, authorization, and accounting (AAA) management for users who connect and use a network service. RADIUS was developed by Livingston Enterprises in 1991 as an access server authentication and accounting protocol. It was later brought into IEEE 802 and IETF standards.

RADIUS is a client/server protocol that runs in the application layer, and can use either TCP or UDP. Network access servers, which control access to a network, usually contain a RADIUS client component that communicates with the RADIUS server. RADIUS is often the back-end of choice for 802.1X authentication. A RADIUS server is usually a background process running on UNIX or Microsoft Windows.

reference

Full Form	Category
Research And Development For Image Understanding Systems	Academic & Science
Remote Access Dial-In User Server	Computer and Networking
Remote Aims Data Input User System	General
Remote Authentication And Dial In User Service	General
Remote Access Dial In User Service	General
Remote Authentication in Dial In User Service	General
Research And Development In The United States	Governmental
Remote Authentication Dial In User Service	Information Technology
Research Archive on Disability In the U S	Medical
Remote Authentication Dial In User Services	Networking