SFTP, or Secure File Transfer Protocol, is a protocol used to transfer files securely over a network. It is a combination of the SSH protocol and the FTP protocol, combining the security features of SSH with the file transfer capabilities of FTP. SFTP uses public-key encryption to authenticate the server and the client, and encrypts all data transmitted over the network, providing a secure and reliable way to transfer files. SFTP is commonly used for remote server administration and for transferring large files between servers.
