Introduction

A firewall is a security system that acts as a protective boundary between a network and the outside world. Macintosh OS X includes firewall software, called ipfw, which you can use to restrict what information is communicated between the Internet and your computer.

Enabling the OS 10.5 (LEOPARD) Firewall

To enable or disable the OS X Firewall: 

 Enabling the OS 10.4 (TIGER) Firewall

To enable or disable the OS X Firewall: 

 

 

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