Mac Firewall Setup: A Step-by-Step Guide to Protect Your System

To set up a firewall on your Mac, you can follow these steps:

Open "System Preferences" by clicking on the Apple menu in the top-left corner of your screen and selecting "System Preferences."
In the System Preferences window, click on the "Security & Privacy" icon.
In the Security & Privacy preferences, click on the "Firewall" tab.
Click on the lock icon in the bottom-left corner of the window and enter your administrator password to make changes.
Click on the "Turn On Firewall" button to enable the firewall. You can also click on the "Advanced..." button for more granular control over firewall settings.
In the Advanced settings, you can configure specific options such as blocking all incoming connections, enabling stealth mode (which makes your Mac less discoverable on networks), and allowing signed software to receive incoming connections.
You can also customize the firewall settings by clicking on the "Firewall Options..." button. This allows you to add specific applications to the list of allowed or blocked incoming connections.
To add an application to the list, click on the "+" button, locate the desired application, and select it. You can then choose to allow or block incoming connections for that application.
Once you have made the desired changes, click on the "OK" button to save the settings.

Your firewall is now set up on your Mac, and it will help protect your computer by monitoring and controlling incoming network traffic.

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