Microsoft RADIUS Server

Microsoft RADIUS Server or IAS (Internet Authentication Server) on Microsoft 2000/2003 Server is Microsoft version of RADIUS (Remote Authentication Dial-in User Service).

Click here to find out more about RADIUS server and authentication process.

Microsoft has also a new version of RADIUS, it is called NPM (Network Policy Manager) and it runs on Windows Server 2008.
Both versions of RADIUS can also be a RADIUS proxy. RADIUS proxy forwards authentication and accounting messages to other RADIUS servers.
It can be simple and handy solution, especially for small enterprises. With Microsoft Server 2000/2003/2008 in the same box you have an Active Directory, RADIUS Server, Certificate Authority – everything what you need for Security in your network, both wired and wireless.
IAS server is extremely stable, secure and robust especially if on Windows Server only runs IAS service. In this case you IAS can run for years without any downtime and without reboots. You can be sure that the same case will be with new Network Policy Server.
Only fault from Microsoft’s RADIUS servers is they are not for free.