To install the OpenSSH client, execute the below command: If any Linux system does not have the ssh client, we can install it manually by using the package manager. The OpenSSH client comes preinstalled with most Linux distributions. It performs remote operations using these ssh utilities. This client package contains other SSH utilities like sftp, scp, and ssh that are installed by default with the ssh command. It is also called as ssh and can be invoked from the Linux terminal. The OpenSSH client is a connectivity tool for the systems to connect two systems with the ssh protocol. The default SSH protocol version for SSH server and SSH client communication is version 2. If the provided information is verified, the SSH protocol establishes a new connection for the available environment. Once the client initiates a connection, the host responds with the necessary information and exchanges the credentials. The server (Host) contains an SSH process that is ready to take a request for the client connection through a TCP/IP port. The client uses the specified host information to establish the connection if the provided credential verified, it will establish an encrypted connection. Also, we require a ssh client to connect with another computer or server. To establish an SSH connection, we need two primary components a client and a host, which can be a server, domain name, IP address, and more.
A domain name or an IP address also refers as Host. Host: A host is a machine that is being accessed by the user, such as a computer or a router.User name: User name is the name of the Linux user, which is being accessed by the host machine.ssh command: It instructs the machine to create a secure encrypted connection with the host system.The ssh command consists of three different types of components:
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