SFTP

SFTP (SSH File Transfer Protocol) is a secure method for transferring files between a client and a server, operating over the SSH (Secure Shell) protocol. It ensures data encryption, protecting files from interception and tampering.

Key Features of SFTP:

Encrypted Transfers: Secures files, authentication, and commands to prevent unauthorized access.

SSH-Based: Runs over SSH (default port 22), eliminating the need for separate encryption mechanisms.

Multiple Authentication Options: Supports password-based and key-based authentication for enhanced security.

Resumable Transfers: Allows interrupted file transfers to continue without restarting.

Firewall-Friendly: Uses a single, secure connection, simplifying firewall configurations.

Common SFTP Commands:

sftp <user>@<hostname> – Connect to an SFTP server.

ls – List files in the remote directory.

cd <directory> – Navigate through directories on the server.

get <filename> – Download a file.

put <filename> – Upload a file.

exit or bye – Close the SFTP session.

SFTP is a preferred choice for secure file transfers in cloud computing, enterprise environments, and remote server management.