SFTP, or Secure File Transfer Protocol, is a network protocol used for transferring files securely over a computer network. It is an extension of the more common File Transfer Protocol (FTP) and provides added security measures.
Unlike FTP, which sends data in plain text, SFTP encrypts all data in transit to ensure confidentiality. It uses Secure Shell (SSH) as its underlying protocol, allowing users to establish a secure connection between the client and the server. This secure connection is achieved through encryption techniques, such as public-key cryptography and symmetric key algorithms.
SFTP provides authentication and authorization mechanisms, ensuring that only authorized users can access and transfer files. The authentication process typically involves username/password-based login or the use of SSH keys.
One key advantage of SFTP is its ability to traverse firewalls and network address translation (NAT), making it ideal for transferring files between remote systems. It offers a range of operations, such as uploading, downloading, and deleting files, as well as directory management.
SFTP is platform-independent, meaning it can be implemented on various operating systems and hardware. It has become a widely adopted protocol in corporate environments and is often used by system administrators, developers, and organizations that require secure file transfers.
Overall, SFTP provides a secure and reliable way to exchange files between remote systems, making it a valuable tool for ensuring the protection and integrity of sensitive data during transit.
