cross-posted from: https://lemmy.world/post/11162262

Hey,

For all of you that are running proper setups and use nftables to protect your servers be aware that pvxe/nftables-geoip now has the ability to generate IP lists by country.

This can be used to, for instance, drop all traffic from specific countries or the opposite, drop everything except for your own country.

https://github.com/pvxe/nftables-geoip/commit/c137151ebc05f4562c56e6802761e0a93ed107a2

Here’s how you can block / track traffic from certain countries:

• https://wiki.nftables.org/wiki-nftables/index.php/GeoIP_matching
• https://www.mybluelinux.com/nftables-and-geoip

Previously you had to load the entire geoip DB containing multiple GB and would end up using a LOT of RAM. Those guides aren’t yet updated to use the country specific files but it’s just about changing the include line to whatever you’ve generated with pvxe/nftables-geoip.