What is SSH
By SSH (Secure Shell)
Glossary Link SSH (Secure Shell) is a Glossary Link protocol for creating a secure connection between two computers.
The secure SSH connection provides authentication and encryption. SSH also provides compression.
The SSH protocol is defined by the IETF Secure Shell Working Group(secsh).
SSH was designed as a replacement for the legacy `telnet` application.
The computer being connected to must be running an ssh daemon, or server, process.
The computer which is attempting to connect must be running an SSH client.
SSH 
