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18.5. The Firewall

If you have a broadband, always-on connection, you're connected to the Internet 24 hours a day. It's theoretically—though remotely—possible for some cretin to use automated hacking software to flood you with files or take control of your machine. Fortunately, Mac OS X 10.3's firewall feature puts up a barrier to such mischief.

Open the Sharing panel of System Preferences. Click the Firewall tab (Figure 18-6), and then click Start. That's almost all there is to it: you're protected.


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