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From looking at the UI in the System Preferences App, it looks like the application firewall rules in OSX's firewall are "all or nothing" -- "Allow all" or "Block all" effectively. I'm under the impression that this UI is ultimately editing com.apple.alf.plist behind the scenes.

Is there a way, perhaps by editing that plist, to get more granular rules? (like "only allow connections from this range of IP addresses, etc.")

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1 Answer 1

Why not use a third party firewall application like LittleSnitch or NoobProof?

LittleSnitch: http://www.obdev.at/products/littlesnitch/index.html NoobProof: http://www.hanynet.com/noobproof/

Not sure if this is exactly what you are looking for, though.

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