From gbhackers.com
SSH or Secure Shell is a cryptographic network protocol that enables secure communication and remote access over an unsecured network.
This network protocol is widely used for secure command-line login, file transfers, and tunneling of other protocols.
It provides a secure way to access and manage devices, servers, and systems by encrypting data during transmission and verifying the identity of the connecting parties.
A new version of SSH has been launched recently, SSH3, which has been revamped with HTTP using QUIC+TLS1.3 for security and HTTP Authorization for user authentication.