I've used it once on an embedded device, which had neither ssh nor telnet. Luckily, it had bash available, so I set up something like this: /bin/bash <> /d

I've used it once on an embedded device, which had neither ssh nor telnet. Luckily, it had bash available, so I set up something like this: /bin/bash <> /dev/tcp/... With netcat listening my side. Most things kind of worked (no way to send ctrl-c though) but vi couldn't properly redraw it's screen. So I had to use ed.