Hardward: x86_64, 2 core CPU, 4GB ram OS: Ubuntu Linux 20.04 LTS
The idea is to set up a file server for sharing files in between small group of people.
The server is behind a router from ISP, so I had to configure the NAT Port-Forwarding to the local IP. And since there is no static IP, I also had to use script like ddns-updater.