Gaining control of every projector and camera on campus (opens in new tab)

While starting my first year at the Colorado School of Mines, I came across a rather interesting fact: the local DNS servers will assign a subdomain to each device that connects to the network. This means that a device called “meow” will be visible as “meow.mines.edu” on any campus wifi, though the network still blocks any traffic. This got me thinking in the back of my mind about what I could do with this, and especially if I could use this to trace back devices on the network.