Accessing Raspberry Pi through the internet

[Damian.Byrne]

So...I've got a Raspberry Pi 3 with a self-powered USB hard drive set up on my home network. The Pi is wired into a switch, which is then itself wired to my ISP supplied modem/switch/router combo unit thing. Raspbian is installed, all latest updates.

I've got SFTP while at home sorted out. The Pi is at address 192.168.1.20.  I'm able to stream media over wifi or ethernet just fine. My Nvidia Shield TV handles everything I can throw at it flawlessly, while downstairs, the first generation Amazon Fire TV stick struggles with 1080p blu-ray rips. 

Amazingly enough, while I'm transferring files to the Pi's hard drive from my desktop via SFTP, the Pi is still able to serve 1080p 10-bit encoded anime to my Shield. Was honestly surprised at that, I thought that the Pi's ethernet would have been saturated with transferring files, since the ethernet is on a USB 2 bus. 

 

Anyway, I want to control my Pi via the internet when I'm out and about. Specifically, I want to be able to select, start and stop torrents. Right now, I'd like help please with port forwarding. 

Check attachments for what the port forwarding on my router looks like. 

I don't know what to do. I've got the Pi's internal address, 192.168.1.20 and my external IP is 51.37.xx.yy (while I'm a noob at this sort of stuff, I know not to give the full address). What do I do? 

Thanks in advance.

[Electronics Wizardy]

best way to do this is to make a vpn server and vpn into your home, much more secure.

[Damian.Byrne]

5 minutes ago, Electronics Wizardy said:

best way to do this is to make a vpn server and vpn into your home, much more secure.

I found this tutorial, and I think I can follow it. About the only problem I am having is with my router's port forwarding page, as I haven't got a clue what to do there.

https://pimylifeup.com/raspberry-pi-vpn-server/

[BLVCKRIPPER]

script for installing ovpn:

wget https://git.io/vpn -O openvpn-install.sh