KORTHVEILSecurity firewall

About

A layer-7 firewall built to be understood.

Korthveil is a next-generation firewall that runs on your own hardware: any 64-bit computer that Debian 13 supports, with two network interfaces.

It sees traffic the way you think about it — devices, applications, websites and people — and shows every rule as a live flow you can read at a glance. Changes are atomic, checked before they apply, and roll back by themselves if something goes wrong.

Korthveil is made by Klokur.