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Configuring SonicWALL Firewalls
book

Configuring SonicWALL Firewalls

by Dan Bendell
May 2006
Intermediate to advanced content levelIntermediate to advanced
600 pages
15h 25m
English
Syngress
Content preview from Configuring SonicWALL Firewalls
Understanding Networking
To understand networking is to understand the language of firewalls. A firewall is
used to segment resources and limit access between networks. Before we can really
focus on what a firewall does for us, we need to understand how networking works.
Today in most environments and on the Internet, the protocol suite TCP/IP
(Transmission Control Protocol/Internet Protocol) is used to transport data from
here to there. We will begin this chapter by looking at networking as a whole with a
focus on the Open System Interconnection (OSI) model.
The OSI Model
The OSI model was originally developed as a framework to build networking pro-
tocols ...
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Publisher Resources

ISBN: 1597492507