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Article | REF: TE7550 V2

Firewalls. The pocketknife for enforcing computer security

Author: Maryline LAURENT

Publication date: October 10, 2017, Review date: January 3, 2024

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4. Filtering at a glance

This section presents an overview of the three types of filtering mechanisms. Its aim is to better position each of these mechanisms in terms of the depth of filtering achieved (figure 3 ), the location of its execution in the layered protocol model (see figure 4[H 5 000] ) and the performance expected.

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