Secure Shell (ssh) is a protocol which facilitates secure communications systems between the two systems using a client / server architecture, and allows a user to login to a remote server. Unlike the telnet and ftp use plain text, SSH encrypt the data during communication so difficult for an intruder / intruders who try password unencrypted. The main function of this application is to access the machine remotely. Forms of remote access to be gained access in text mode and graphic mode / X if the configuration allows.