Gatekeeper is your friendly and effective macOS bouncer. The extra level of control means you can secure your Mac in a way that best suits your needs. Once added, you can switch each application’s status to either block or allow incoming connections. To add an entry to the list, press the plus (+) button, locate the relevant app, and click Add. When you have the firewall turned on, macOS makes it simple to create exceptions and restrictions. Your device won’t respond to ping requests or connection attempts, effectively granting network invisibility.
Stealth mode, another useful tool, can help hide your Mac from malicious operators. Related: Does Your Mac Really Need a Firewall? What You Need to Know However, allowing connections for built-in and trusted software is generally safe and can streamline your macOS experience. Enabling this feature can hamstring any apps that rely on internet access, so you’d want to have a good reason for using that option. You only need to block all incoming connections in extreme situations. Additional settings allow you to:Īllow built-in apps or certified software to bypass the firewall You can, however, use the Firewall Options panel in Security & Privacy > General to customize the level of protection granted. Occasionally, the macOS firewall will interfere with applications that require internet access.
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