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Remote Authentication Dial-In User Service (RADIUS) is a protocol that enables you to exchange session authentication and configuration information between a Network Access Server (NAS) device and a RADIUS authentication server. The RADIUS protocol is often used by NAS devices that serve as proxy services, firewalls, or dial-up security devices.
A RADIUS Agent secures an entire application that communicates using the RADIUS protocol.
The Policy Server can be used as a RADIUS authentication server. RADIUS Agents allow the Policy Server to communicate with the NAS client devices.
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