Product manual

To turn on Smart Firewall from the notification area
4
In the notification area on the taskbar, right-click
the Norton 360 icon, and then click Enable Smart
Firewall.
About firewall rules
A firewall is a security system that uses rules to block
or allow connections and data transmission between
your computer and the Internet. Firewall rules control
how the Smart Firewall protects your computer from
malicious programs and unauthorized access. The
firewall automatically checks all traffic that comes in
and out of your computer against these rules.
The Smart Firewall uses two kinds of firewall rules:
Control network access for
programs on your computer.
Program rules
Control all the incoming and the
outgoing network traffic.
Traffic rules
About the order in which firewall rules are processed
The Smart Firewall processes Traffic rules before it
processes Program rules. For example, when there is
a Program rule that allows Internet Explorer to access
Internet using port 80 with TCP protocol and a Traffic
rule that blocks TCP communication through port 80
for all applications. The Internet Explorer application
cannot access the Internet as Norton 360 gives
precedence to Traffic rules over the Program rules.
For example, you have a Program rule for the Symantec
pcAnywhere application that blocks the use of the
application with any other computer. You add another
rule for the same application that allows its use with
a specific computer. You then move the new rule before
the original rule in the program rule list. Norton 360
processes the new rule first and lets you use Symantec
Keeping secure on the Internet
About the Smart Firewall
254