What is SSH?

SSH is an application level network protocol that is used for remote control of operating systems and secure communication between computers, including access to servers of hosting providers. Thanks to him, the user can manage and make changes to his remote server via the Internet. Unlike old protocols such as Telnet, FTP, RSH, SSH protocol is based on modern algorithms for secure traffic encryption.

SSH has a client-server architecture. In the process of connecting the client to the SSH server, the server checks the access rights to such a connection. It is possible to set a specific port for client-server communication. Port 22 is listened on by default. Once connected, users can send different commands using client programs.

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