Plesk - Adding Firewall Rules
Process of Adding Firewall Rules.
Step 1 - Log in to your Plesk control panel.
Step 2 - Go to the “Tools & Settings” tab and choose which domain you’d like to secure.
Step 3 - Select Firewall.
Step 4 - Click on Firewall Rules.
Step 5 - Click on Add Firewall Rules.
Step 6 - Fill up the following details and port number which you want to block/allow connection.