Posture Assessment
Besides user authentication, authorization in NAC can be based upon compliance checking. This posture assessment is the evaluation of system security based on the applications and settings that a particular system is using. These might include Windows registry settings or the presence of security agents such as anti-virus or personal firewall. NAC products differ in their checking mechanisms:
- 802.1x Extensibile Authentication Protocol
- Microsoft Windows AD domain authentication - login credentials
- Cisco NAC Appliance L2 switch or L3 authentication
- Pre-installed security agent
- Web-based security agent
- Network packet signatures or anomalies
- External network vulnerability scanner
- External database of known systems
Read more about this topic: Network Admission Control
Famous quotes containing the words posture and/or assessment:
“If one’s posture is upright, one has no need to fear a crooked shadow.”
—Chinese proverb.
“The first year was critical to my assessment of myself as a person. It forced me to realize that, like being married, having children is not an end in itself. You don’t at last arrive at being a parent and suddenly feel satisfied and joyful. It is a constantly reopening adventure.”
—Anonymous Mother. From the Boston Women’s Health Book Collection. Quoted in The Joys of Having a Child, by Bill and Gloria Adler (1993)