
User Guide 7
Introduction to Network Security
protected networks go through the firewall, which examines each message and denies those that
do not match the security criteria.
The Firebox® X Edge and Your Network
The Firebox® X Edge controls all traffic between the external network and the trusted network. The Edge
also includes an optional network. Use the optional network for computers with “mixed trust.” For exam-
ple, customers frequently use the optional network for their remote users or for public servers such as a
web server or e-mail server. Your firewall can stop all suspicious traffic from the external network to your
trusted and optional networks. The rules and policies that identify the suspicious traffic appear in “Con-
figuring Firewall Settings” on page 77.
The Firebox X Edge e-Series is a firewall for small and remote offices. Some customers who purchase an
Edge do not know much about computer networks or network security. There are wizards and many
self-help tools for these customers. Advanced customers can use integration features to connect an
Edge to a larger wide area network. The Edge connects to a cable modem, DSL modem, or ISDN router.
The Web-based user interface of the Firebox X Edge lets you manage your network safely. You can man-
age your Edge from different locations and at different times. It gives you more time and resources to
use on other components of your business.
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