MacOSX - Enabling the firewall

How to enable the firewall of Mac OS X?
1 - From the Apple menu, System Preferences .
2 - Then, click on Security .
3 - Click on the Firewall tab. Then click on the lock icon (bottom left) and enter your administrator credentials (username and password).
4 - Click on the Start button to turn the Firewall on.

Ask a question
CCM is a leading international tech website. Our content is written in collaboration with IT experts, under the direction of Jean-François Pillou, founder of CCM reaches more than 50 million unique visitors per month and is available in 11 languages.
This document, titled « MacOSX - Enabling the firewall », is available under the Creative Commons license. Any copy, reuse, or modification of the content should be sufficiently credited to CCM (