NPS NPS is a Remote Authentication Dial-In User Service (RADIUS) server and proxy in Windows Server 2008. As a RADIUS server, NPS provides authentication, authorization, and accounting (AAA) services for various types of network access. For authentication and authorization, NPS uses Active Directory to verify user or computer credentials and obtain user or computer account properties when a computer attempts an 802.1X-authenticated connection or a VPN connection.
Bl8ckr0uter wrote: » Does anyone know if you can set up network policy server without active directory in place? I have heard with IAS (the old version of NPS) you could but I don't know about NPS.