I make computers for a not-for-profit organisation.
I don't want anyone to plug a keyboard / mouse / screen into it and be able to do anything on it.
So there is a locked screen at launch, but you can still access TTY with Ctrl+Alt+F1
How can I disable all TTY command lines, or the Ctrl+Alt+F1 shortcuts? (so F1, F2, F3 ... F6)