How to Block a Whole Country Via CSF
In the event you need to block a whole country, this can be done via the CC_DENY option located within ConfigServer Security & Firewall.
Log into WHM as root
Click on the “ConfigServer Security & Firewall” link within the “Plugins” section.
Click on the “Firewall Configuration” button.
Search for the “Country Code List and Settings” section.
Enter in the 2 letter CIDR country code you would like to block within the CC_DENY section.
Scroll down to the very bottom and click the “Change” button.
Click the “Restart csf+lfd” button to apply the changes and restart the firewall.
From here the country or countries added will no longer be able to access the server.