Select the Inbound Rules item from the panel on the left and then click New Rule from the right-hand panel. In the first screen of the New Inbound Rule Wizard, select the Port option to open a specific port or set of ports, then click Next . On the next step, select whether you want to open a TCP or UDP port, depending on the requirements of On your Mac, choose Apple menu > System Settings, click General in the sidebar, then click Sharing on the right. (You may need to scroll down.) Turn on Remote Login, then click the Info button on the right. If you want, turn on “Allow full disk access for remote users.”. Click the “Allow access for” pop-up menu, then do one of the Learn how to block connections to your Mac with a firewall. To change these settings, choose Apple menu > System Settings, click Network in the sidebar, then click Firewall on the right. (You may need to scroll down.) Prevent unwanted connections from the internet or other networks. Choose how much to block incoming connections. thank you. I think I am going to activate the Mac OS Ventura firewall. There is no need to activate your computer's firewall under normal situations. Describe your network environment and why you think you need to activate the firewall. In summary, a firewall isn't really necessary on a typical Mac desktop, just as it isn't really necessary on a typical Ubuntu Linux desktop. It could potentially lead to more hassle with setting up certain network services. But, if you feel more comfortable with it on, you're free to enable it! Use Remote Management in Sharing settings to allow others to access your computer using Apple Remote Desktop. On your Mac, choose Apple menu > System Settings, click General in the sidebar, then click Sharing on the right. (You may need to scroll down.) Turn on Remote Management, then click the Info button on the right. For users on your network to access Google Drive, Google Docs editors, and new Google Sites, connect your firewall rules to the following hosts and ports. Otherwise, users might be blocked or denied access from these services. Note: When a host includes [0–9], you should allow a host with each single decimal digit. On your Mac, choose Apple menu > System Settings, then click Network in the sidebar. (You may need to scroll down.) Click a network service on the right, then click Details. Click Proxies. If you want to configure your proxy settings automatically, do one of the following: To automatically discover proxy servers, turn on “Auto proxy discovery UniFi Gateways include a powerful Firewall engine to provide maximum network security. We recommend most users configure the Firewall using Traffic Rules. They provide an incredibly intuitive interface that streamlines rule creation for common use-cases such as network isolation, parental controls, or even bandwidth limiting. Personal Firewall. Firewalls work very differently depending on whether they’re used by single computers, entire networks (such as within a business office), or web servers. A personal firewall is intended for use on just one computer. This is the firewall that comes pre-installed on Windows and Mac machines or with your antivirus software. n1Sc.