Setting up a router to access intranet resources from the Internet?

Question

Computer networks

Tell me how, and is it possible at all, to set up a router to access intranet resources from the Internet (for example, I need to add a torrent from a laptop in another city via a webmord, or restart the media player).
Network Diagram:

Thanks in advance.

Answer 1

Port forwarding. Or, if everything is spinning on one machine, DMZ.

Answer 2

something like this ... as on the screen ... naturally, you specify your ports ... on which your services will spin ...
Tip: do not specify 22 ... since your router listens to port 22 ...