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Chapter 5 – The Three Lines of Defense
Firewall settings
NetBarrier's Firewall has 6 different settings that correspond to the way you use
your computer. When you install NetBarrier, and restart your Macintosh, the
program's Antivandal feature (see later in this chapter, Antivandal) starts
monitoring your computer to prevent intrusions, but the Firewall must be set to
correspond to your network activity. The first five settings, which are based on
preprogrammed rules, cover all the situations that you will encounter in normal
use.
The last setting, Customized, allows you to design your own rules, to
precisely control the levels of access to and from your computer.
No restrictions
In this mode, there are no restrictions, and NetBarrier's Firewall allows
all incoming and outgoing network data to be sent and received. If
you select this setting, it is as if the Firewall were turned off.
No network
In this mode, NetBarrier's Firewall prevents all data from entering or
leaving your computer to or from the Internet. This is useful if you are
away from your computer, and wish to protect it totally. This does not
affect local AppleTalk networks.
NetBarrier User's Manual
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