Host a Syncthing Relay

Setting up a reverse proxy with caddy was suprisingly painless. It sets up SSL automagically. Create a caddy configuration file at /etc/caddy/Caddyfile and add

strelay.example.com { reverse_proxy localhost:22067 }

Point strelay.example.com to your server, and make sure strelay service is enabled and running with systemctl status strelay.service