SFTP
SFTP (SSH File Transfer Protocol) is a secure network protocol used for transferring files between a client and server over a reliable data stream, typically leveraging SSH (Secure Shell) for encryption and authentication. It provides file access, transfer, and management functionalities, ensuring data confidentiality and integrity during transmission. Unlike traditional FTP, SFTP encrypts both commands and data, making it suitable for sensitive or regulated environments.
Developers should learn and use SFTP when they need to securely transfer files in scenarios such as deploying web applications, backing up data, or automating file exchanges in cloud or on-premises systems. It is essential for compliance with security standards like HIPAA or GDPR, and is commonly integrated into CI/CD pipelines, server administration, and data migration tasks where unencrypted protocols like FTP pose risks.