Disable Firewall on macOS
Mac’s Firewall settings can be found in the Security and Privacy preference in System Preferences.
To disable the Firewall in macOS and OS X v10.6 or later:
- Go to System Preferences > Security & Privacy.
- Click on the Firewall tab.
- Click on the lock icon in the bottom left corner of the window and enter your administrator password.
- Click Turn Off Firewall (or Start in OS X).

In v10.5 of OS X, the Firewall is enabled slightly differently:
- Go to System Preferences > Security.
- Click on the Firewall tab.