RADIUS simplifies administration of remote access servers

One way around this is to configure a single computer running Windows Server 2003 and IAS as a RADIUS (Remote Authentication Dial In User Service) server and configure the remote access servers as RADIUS clients.

The IAS server provides centralized remote access authentication, authorization, accounting and auditing. Assuming that you've already configured the remote access servers to provide access for dial-up or VPN clients, you can accomplish this by performing the procedures listed below.

Configure the remote access servers for RADIUS authentication.

When you configure the properties of a remote access server running Windows Server 2003, you need to select RADIUS as the authentication provider. To change a server to RADIUS authentication, follow these steps: Configure the remote access servers for RADIUS accounting.

When you configure the properties of a remote access server running Windows Server 2003, you need to select RADIUS accounting

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as the accounting provider. To change a server to RADIUS accounting, follow these steps: Configure the IAS server.

You need to register each of the remote access servers as clients on the IAS server. Once the remote access servers are configured to use RADIUS authentication, only the remote access policies stored on the IAS server are used. So if one of the remote access servers contains the remote access policies that are applied to all of the remote access servers, you need to copy the remote access policies to the IAS server.

To copy the policies from a remote server to the IAS server:

Note: This procedure does not work unless both the source and destination computers are running the same version of Windows Server 2003.

About the author: Rahul Shah currently works at a software firm in India, where he is a systems administrator maintaining Windows servers. He has also worked for various software firms in testing and analytics, and also has experiences deploying client/server applications in different Windows configurations.

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