Telnet is still an invaluable tool to connect to memcache and redis instances for debugging and quick remote management. I still chuckle when spinning up a lin

Telnet is still an invaluable tool to connect to memcache and redis instances for debugging and quick remote management. I still chuckle when spinning up a linux instance and trying to use telnet command only to be told it's not installed and I briefly exclaim "WHAT!" before I have to install it. Edit: Also don't forget Gopher, which was one of the original menu based document systems before HTTP became the "norm"