So I have this old machine: Intel Pentium E5200, 2GB of DDR2 RAM, Radeon R5 230 2GB GPU, Gigabyte G31M-S2L MOBO which is currently sitting doing nothing. I thought of turning it into a NAS server or a router, but in a couple of weeks i'm moving for college and can't take the old machine with me. Also this thing is going to spend electricity and I can't take advantage of it running 24/7, so a NAS solution doesn't make sense for me.
My main workstation machine (which I'll be taking with me) has 400GB of raw data right now that are not backed up anywhere. It's mainly videos, imagery, large projects and similar stuff I'll be working with. Both the current and the next place i'll be moving into have slow 24MBps connections so I won't be using VPN or anything with a toll on transfer speed.
The solution I think fits best, is set up the old machine with some linux distro (cause old hardware) then remotely turn it off when I need to upload my files from the other city, leave it overnight transfering my stuff (cause slow internet) then once I'm done turn it off remotely. And have a safe and secure offsite backup of my files.
I'm guessing it's possible but how do I do it exactly? Also I'm looking for the cheapest solution available (ideally just a bunch of hdds for the old machine). Thank you.