[Krypton]

Ports page

If you're setting up the Mac OS X Firewall, you'll want to know which ports to enable - which is where the above page is very handy.

Thought people might find it useful as I was struggling before (and some unhelpful people told me I couldn't enable the firewall and have internet sharing on, whereas all i needed to do was enable port 80)

[synner]

Try here.

Test your firewall, and get yer ports probed.

[Krypton]

Could anyone explain to me how I can use FTP programs with a Firewall? The Firewall is on a Mac sharing a dsl connection by Airport and I'm not sure whether I ought to be opening ports or setting proxies (which confuses me).

Thanks