Secure File Transfer Protocol (SFTP)

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Secure FTP (SFTP) is a secure version of the File Transfer Protocol that uses a Secure Shell (SSH) tunnel as an encryption method to transfer, access, and manage files.

• addresses the privacy and integrity issues of FTP by
  • encrypting the authentication and data transfer between client and server
• a secure link is created between client and server using SSH over TCP port 22
• ordinary FTP commands and data transfer can then be sent over the secure link
• requires an SSH server that supports SFTP plus SFTP client software
• another way to secure FTP is to use TLS