Check Firewall Rules Open Port
Check Firewall Rules Open Port. Port Is Closed: If the test indicates that the port is closed, it suggests that your port forward settings may be incorrect. The right way to do it just depends on whether you're using a Mac or PC and what kind of port you're checking.
Both methods provide roughly the same information in different formats. You can scroll down the list and look for the port you are interested in. Right-click Windows Firewall, and then click Open.
On the computer that runs Windows Firewall, open Control Panel.
In the new window, select the " Port " radio option and click " Next." Depending on which port you want to open, select " TCP " or " UDP " and click " Next ." Advanced settings - If you're knowledgeable about firewall settings this will open the classic Windows Defender Firewall tool which lets you create inbound or outbound rules, connection security rules, and see monitoring logs for the firewall.
There are two different ways to view your active iptables rules: in a table or as a list of rule specifications. You can scroll down the list and look for the port you are interested in. Try the "Use specified custom port probe" option.