SSH - Secure shell client
SSH [options] host [command]
SSH (Secure Shell) a program for logging into a remote machine and for executing
commands in a remote machine. It uses the command line, and is an alternative for Telnet. It is intended to replace rlogin and rsh, and provide secure
encrypted communications between two untrusted hosts over an insecure network. X11 connections and arbitrary TCP/IP ports can also be forwarded over the secure channel.
SSH connects and logs into the specified hostname. The user must prove his/her identity to the remote machine using one of several methods depending on the protocol version used.
All communication is encrypted, passwords, etc. telnet does not encrypt passwords over the net.