The simplest is a forward of port 22000/TCP on your router towards your internal device. No DNS, no relays, no special config. The other side will try to connect to whatever external IP gets announced on port 22000.
The simplest is a forward of port 22000/TCP on your router towards your internal device. No DNS, no relays, no special config. The other side will try to connect to whatever external IP gets announced on port 22000.