2.6.3 Enable Firewall

Information

A firewall minimizes the threat of unauthorized users from gaining access to your system while connected to a network or the Internet.

Solution

Perform the following to implement the prescribed state:
Open System Preferences
Select Security & Privacy
Select Firewall
Select Turn On Firewall
Alternatively:
Run the following command in Terminal:
/usr/bin/defaults write /Library/Preferences/com.apple.alf globalstate - int <value>
Where <value> is:
1 = on for specific services
2 = on for essential services

See Also

https://workbench.cisecurity.org/files/300

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-7(12), CSCv6|9.2

Plugin: Unix

Control ID: 450df39530a8b69984f3376d4859a8a204f2f6da2a0b583b309d373211311e4d