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Ubuntu For Non-Geeks, 3rd Edition by Rickford Grant

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Software Firewalls

If you don't have a router and don't plan on getting one, or if you have one, but you are bordering on paranoia, you might want to consider using a software firewall, in particular one of the most popular software firewalls available for Linux, Firestarter.

You can download and install Firestarter via Synaptic by searching for and installing firestarter. Once it is installed, run it by choosing System ► Administration ► Firestarter. You will then be prompted for your password, so type that, and click the OK button.

Firestarter will open with a pretty self-explanatory setup wizard the first time out. If the wizard doesn't seem all that self-explanatory to you, and you're not sure what to do, just accept the default settings by ...

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