Erick Lee writes: "Is a firewall enough to provide security to your network? The answer is no. A common misconception is that firewalls recognize attacks and block them. In fact, firewalls perform only limited, specific functions in network security." This article does an excellent job outlining the three approaches to firewalling and explaining why more then a firewall is needed to achieve host/network security.
The link for this article located at eSecurityOnline.com is no longer available.
