In years past, companies relied on network edge security to establish a perimeter separating trusted insiders from everyone else. However, the distributed and dynamic nature of modern networks, combined with targeted threats against applications and data, is changing that focus. Today, network security is more about controlling individual user access to services and data, and auditing their behavior to ensure compliance with policies and regulations. Best practices developed for perimeter security still apply, but they must now be deployed more pervasively and become an integral part of the network itself. This tip looks at how unified threat management (UTM), SSL VPNs, endpoint security, NAC and network security monitoring are being used to secure the new network architecture. ...
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