11.8. Working from the Command Line
Although it is possible to adequately configure the firewall through the Mac OS X Sharing System Preference or through third-party applications, sometimes you'll want to get even more granular. For example, you might want to perform a more advanced security lockdown such as denying outgoing traffic for certain ports while continuing to allow incoming traffic on those same ports. Or you might want to disable communications to and from certain IP addresses rather than across the board. These and other specific tasks, such as bandwidth throttling, can be accomplished only by using the command line. They cannot be accomplished with the GUI. Before we delve into the specific commands, we need to discuss some of ...
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