Network Access Protection (NAP) is a policy-enforcement platform built into Windows. It’s designed to protect client computers, networks, edge devices and hosts from malware by verifying the client’s health and making it compliant to corporate network policies. This set of technologies allows an IT administrator to keep the endpoints healthy at all times and enable access control based on health policies. In Windows Server 2008 R2, RD Gateway (formerly referenced as TS Gateway) has significant improvements in its integration with NAP. Using this release, administrator can configure RD Gateway to remediate the client or provide information to users on compliance to enable them to make the right decisions. In all the RDG system can now evaluate the client health for logging, enforce peripheral redirect or access using NAP, and remediate clients on connection attempts.
Full Article: RDS team blog