I have used Norton's Personal Firewall to good effect: it seems to block just about all ports unless you specify any to remain open. It also stops you downloading from an FTP site unless you specify the site's IP address first!
Regards,
Clive
Can anyone give me details of a reasonably priced Firewall that will be just as easy to install and run on a MAC (a G3 tower and a G4) running OS 9.2 but intend to upgrade to OS X in the new year.
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