So my 9-5 job involves working with lots of servers that my school uses for various tasks. They also have a ton of old servers with some decent specs that are currently out of commission since they upgraded to new hardware. However they are still just sitting around and are currently not in use. So I talked to my boss and he gave me the go ahead to use one or two boxes for personal projects. So my question to everyone is, how can I use these old servers to set up some form of automated money making system that is NOT illegal. Since these servers aren't mine, and its quite obvious I'm using them I do not want to do anything illegal or even borderline questionable. I've considered a couple of options but I'd like to hear what suggestions other people have. These are industry grade servers that are running around the clock and would essentially be free for me to use. Best of all I have physical access to them!