That problem would probably get a lot less acute if you guys over there finally started to pay decent wages to teachers

Many routers have an option to login to a VPN. Then all traffic that goes over that router to the internet goes over the VPN. Theoretically something like that should also be possible with a Linux server if the server is local. With this setup you shouldn’t need to configure the VPN on your local devices.

I think OP thought you meant a software driver but you meant a hardware driver, didn’t you?

Since the launch of the beta, Google says it saw over 50 million files transferred between PCs and Android devices.

Can someone explain to me why google needs to know when I am sharing a file locally?