Mac OS X - Using the Built-in Firewall

Mac OS X has a built-in firewall that is not running by default. This will show you how to start or stop the OS X firewall.

Directions for 10.7 and newer:

To open the Firewall control panel:

Here you can either Start or Stop the firewall by clicking a button. We recommend you turn your firewall on. After starting the firewall, you will then be able to click the Firewall Options... button for more advanced configuration if you wish.


Directions for 10.5 and 10.6:

To open the Firewall control panel:

Here you can either Start or stop the firewall

Directions for 10.4 and older:

To open the Firewall control panel:

Here you can either Start or stop the firewall