Worked at a university in the 90s. Staff (above a certain level) had access to dial back system, for which we would configure their modem to dial our system and

Worked at a university in the 90s. Staff (above a certain level) had access to dial back system, for which we would configure their modem to dial our system and then drop the call and we would call them back and provide network/internet access. This was in the uk where free local calls weren't the norm and dial up isps such as freeserve hadn't appeared yet. There was also a noticeable drop in the speed of the universities internet connection around lunchtime which was generally put down to "America logging on". When I got my first cable modem around 2000 you could scan local network segment for open smb ports and map other users drives, usually rw. Saw some interesting stuff doing that. Was pretty cool to access the many open ftp servers too. I think the original version of the audiogalaxy music finder app was just a front end to search those.