Stands for “Secure Shell.”

SSH is a networking protocol for securely connecting to 1 laptop from one other throughout a network. It permits a consumer to remotely log in to a pc the place they could view information and problem instructions. It additionally helps safe file transfers using SFTP. SSH makes use of encryption to guard the connection in opposition to eavesdropping, even when used over an insecure network connection.

Unix, Linux, and macOS have lengthy included each SSH server and shopper packages. Windows 10 and later variations additionally embody SSH shopper and server, accessible by way of the command line. Using an SSH shopper to hook up with one other laptop offers you an identical command-line entry that you’d have in the event you have been at that laptop’s keyboard; use Unix instructions when related to a Unix, Linux, or macOS laptop, and Windows / DOS instructions when related to a Windows laptop. SSH server software program additionally runs on some enterprise-level networking tools like routers to permit network directors distant entry to their {hardware}.

An SSH connection to a remote computer
An SSH connection to a distant laptop

SSH was first launched as a safe different to the Telnet protocol, which lacked encryption and despatched each command as plain textual content. SSH encrypts all visitors touring over the protocol to stop unauthorized folks within the center from accessing and studying the visitors. While the commonest use for SSH is for distant terminal classes, it might probably additionally work as a tunnel for different protocols to securely transmit information.

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