The Security Perimeter

The discussion to this point has not mentioned the specific technology used to enforce operational and organizational security or a description of the various components that constitute the organization’s security perimeter. If the average administrator were asked to draw a diagram depicting the various components of her network, the diagram would probably look something like Figure 2-1.

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Figure 2-1 Basic diagram of an organization’s network

This diagram includes the major components typically found in a network. A connection to the Internet generally has some sort of protection attached to it such as a firewall. An intrusion ...

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