What? A Geography based firewall blocks access to/from entire countries.
Why? Useful on a RDP server to reduce risk by ignoring entire chunks of the internet. (RDP has been targeted recently with wormable exploits)
Verigio makes a cool little software firewall, that is super simple and free. (free for 5 areas or less, still waiting to see if an area is a continent or a country)
I live in NorthAmerica so i block: Africa, Asia, Australia, Middle East, South America, Other AND under Europe i check Russian Federation.
Log shows a lot of hits on Singapore; ZeroTier VPN is based in Singapore. Had to figure this out by guessing, as clicking a blocked entry does not show detailed records or the process.
Installation does require a reboot.