Internet Protocol Security

This section starts with a quick refresher on the basics of IPsec, then spends more time discussing the new capabilities relating to IPsec in Windows Server 2008, and finally shows you how to use the technology to isolate servers and domains, a foundation for your NAP architecture.

IPsec Basics

IPsec is an open standard used to protect information transiting networks from unauthorized access and modification. This is done using a combination of authentication protocols, data encryption, and digital signatures. When two hosts begin to use IPsec to communicate they initially establish two security associations. In phase one or main mode, the hosts authenticate with one another; in phase two or quick mode, the hosts negotiate ...

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