It provides strong authentication and secure communications over unsecure channels. It is intended as a replacement for rlogin , telnet , rsh , and rcp . SSH provides a much higher level of security than telnet .
All communications are automatically and transparently encrypted, including passwords.
You will need an SSH-capable client running on your desktop machine. On UNIX systems the commands used to connect and copy files are ssh , slogin , and scp. Here we show only brief examples of the use of the ssh and scp utilities on Unix systems. For more depth, and for information on SSH software for other platforms, see More Information , below. Password-less logins can be established by properly configuring your SSH environment on your local workstation.