How to Actually Set Up the Gluetun VPN Killswitch

Most guides show you how to configure Gluetun. Almost none of them show you how to verify the killswitch is actually working — not just configured. This is the gap. You can have Gluetun running, qBittorrent connecting through it, and still have a broken killswitch that leaks your real IP the moment the VPN drops. I learned this the hard way. Here's how to set it up correctly and test it properly. What the Killswitch Actually Does Gluetun is a VPN client that runs as a Docker container. The kills