December 2001
Intermediate to advanced
656 pages
27h 19m
English
Content preview from Networking Explained, 2nd Edition
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Chapter 16: Network Security Issues 483
rity barriers in the path of a critical asset or resource, the chances of someone getting
through without detection are greatly diminished. The concept is much like that of the
strong castle protected by a series of moats. As the storming horde nears the castle, it must
traverse the moats. It is possible to traverse some moats by pole-vaulting, but eventually the
invader is likely to fall into one of the moats and be caught. If there is only one moat and the
invader is a good jumper, odds are the invader will succeed. If there are moats, trip wires,
razor wires, tall fences with broken glass on them, land mines, ...
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