A cryptographic networking protocol that allows secure access across insecure networks. It uses [[Trust-On-First-Use|TOFU]] to prevent MitM and other attacks. # Tips By default `~` is an escape character. It allows for issuing commands to the SSH runtime in an open session and may be used, for example, to add a tunnel without restarting a session. It requires a blank line and adding the escape character followed by a command. Adding a forward looks like: ``` ~C L<localport>:<remoteaddress>:<remoteport> ```