You probably remember the "old days," when setting
up security commonly meant using a firewall. But
even then, this was a woefully narrow viewpoint.
Establishing perimeter security requires much more than
using firewalls and detecting intrusions. A firewall is only one
component of perimeter security, and perimeter security
is just one component of security. Here are some things to
consider when establishing perimeter security and a
checklist you can use to plan perimeter security in today's
environment of increasing connectedness.
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