From charlesreid1

Stump.gif This article is a stub.

A team of expertly-trained librarian ninjas has been dispatched to research this topic, finish this article, and assassinate all eyewitnesses who contradict their account.

They should be done pretty soon.

Template:Stub

Category:Stubs

Mac

Mac is BSD-based (Darwin BSD) and uses ipfw as the built-in firewall.

(Optionally, you can use the point-and-click GUI firewall in System Preferences, but that limits your control.)

Linux

Linux uses iptables for its built-in firewall.