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This document uses the following terms:
NAP client: A computer capable of examining and reporting on its health, and requesting for and using network resources. The NAP client is the set of NAP components installed and running on a Windows client. The NAP client is responsible for executing NAP-related operations on the client side. The NAP client is also responsible for collecting health information on the client, composing the health information into an SoH [TNC-IF-TNCCSPBSoH], and sending the SoH to a NEP.
NAP health policy server (NPS): A computer acting as a server that stores health requirement policies and provides health state validation for NAP clients.
Network Access Protection (NAP): A feature of an operating system that provides a platform for system health-validated access to private networks. NAP provides a way of detecting the health state of a network client that is attempting to connect to or communicate on a network, and limiting the access of the network client until the health policy requirements have been met. NAP is implemented through quarantines and health checks, as specified in [TNC-IF-TNCCSPBSoH].
Network Access Protection (NAP) client: A computer that supports the NAP feature by complying with the corresponding policy settings.
Network Policy Server (NPS): For Windows Server 2008 operating system, NPS replaces the Internet Authentication Service (IAS) in Windows Server 2003 operating system. NPS acts as a health policy server for the following technologies: Internet Protocol security (IPsec) for host-based authentication, IEEE 802.1X authenticated network connections, Virtual private networks (VPNs) for remote access, and Dynamic Host Configuration Protocol (DHCP).
quarantine: The isolation of a non-compliant computer from protected network resources.
remediation: The act of bringing a non-compliant computer into a compliant state.
security updates: The software patches released by Microsoft to fix known security issues in released Microsoft software.
statement of health (SoH): A collection of data generated by a system health entity, as specified in [TNC-IF-TNCCSPBSoH], which defines the health state of a machine. The data is interpreted by a Health Policy Server, which determines whether the machine is healthy or unhealthy according to the policies defined by an administrator.
statement of health response (SoHR): A collection of data that represents the evaluation of the statement of health (SoH) according to network policies, as specified in [TNC-IF-TNCCSPBSoH].
Windows Security Center (WSC): WSC is the service on Windows XP operating system Service Pack 3 (SP3) and Windows Vista operating system clients that determines the firewall, antivirus, antispyware, and Automatic Updates states that are then reported by the WSHA.
MAY, SHOULD, MUST, SHOULD NOT, MUST NOT: These terms (in all caps) are used as defined in [RFC2119]. All statements of optional behavior use either MAY, SHOULD, or SHOULD NOT.