An inherent feature of ssh is that the communication between the two computers is encrypted meaning that it is suitable for use on insecure networks. SSH is often used to "login" and perform operations on remote computers but it may also be used for transferring data.

What do we use SSH for?

SSH or Secure Shell is a network communication protocol that enables two computers to communicate (c.f http or hypertext transfer protocol, which is the protocol used to transfer hypertext such as web pages) and share data.

What is SSH Server and its use?

SSH, also known as Secure Shell or Secure Socket Shell, is a network protocol that gives users, particularly system administrators, a secure way to access a computer over an unsecured network. ... An SSH server, by default, listens on the standard Transmission Control Protocol (TCP) port 22.