Many times I have an SSH session that doesn't respond anymore (for example, when I lose internet connection and then reconnect). Ctrl+C, Ctrl+D, Ctrl+Z and a zillion of key presses don't have any effect.
Most of the time I already have tmux or byobu running already, so I can just start another terminal and reconnect. However it does feel cumbersome. How can I disconnect SSH from the current terminal?