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Cisco NAC Appliance Enforcing Host Security with Clean Access Authenticate, inspect, remediate, and authorize end-point devices using Cisco NAC Appliance Jamey Heary, CCIE® No. 7680 Contributing authors: Jerry Lin, CCIE No. 6469, Chad Sullivan, CCIE No. 6493, and Alok Agrawal With today's security challenges and threats growing more sophisticated, perimeter defense alone is no longer sufficient. Few organizations are closed entities with well-defined security perimeters, which has led to the creation of perimeterless networks with ubiquitous access. Organizations need to...