Window on WANs

Jul 26 2010   10:31AM GMT

Microsoft Windows 2008, R2: Changes to SSTP VPN, traffic authentication and x.509 certificate setup

Tessa Parmenter Tessa Parmenter Profile: Tessa Parmenter

Brien Posey If you are upgrading your company’s Windows operating system (OS), you should know about a few changes Microsoft made to Windows security in Windows 2008 and Windows 2008 R2 that will affect the way you set up virtual private networks (VPNs). First of all, VPNs switched from using Layer Two Tunneling Protocol (L2TP) to Secure Socket Tunneling Protocol — or SSTP, which is a Windows flavor of Secure Sockets Layer (SSL). Not only does this make Windows VPNs more secure, but this also changes the steps to set up your VPNs. Secondly, although the preferred method for authenticating and authorizing VPN traffic has always been to use RADIUS authentication, earlier iterations of the OS prior to Microsoft Windows 2008 called this “Internet Authentication Service,” better known as IAS. This alteration will affect how you authorize traffic through your VPN.

In this series of technical articles, IT guru Brien Posey explains how to set up VPNs securely for Microsoft Windows 2008 and higher. From his articles you can learn:

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