<seo title="What is SSH" metakeywords="sftp,shell,ssh,ssh client,secure FTP" metadescription="What is SSH" /><div align=justify>'''Secure Shell''' (also known as '''SSH''' and '''Secure Socket Shell''') is a UNIX-based command interface and protocol for securely getting access to a remote server or computer. Linux and Unix users' command line is called a shell. You can use Shell to log in to another computer over a network and execute commands on a remote computer.  It can also be used for file transfer (using '''SFTP''' ('secure FTP'). SFTP is a program that uses SSH to transfer files. Unlike standard FTP, it encrypts both commands and data, protecting passwords and sensitive information. It is functionally similar to FTP, but because it uses a different protocol, you can't use a standard FTP client to connect to an SFTP server.