SSH stands for Secure Shell or Secure Socket Shell, and it is a network protocol that provides a secure way to access a computer over an unsecured network. It is present in all data centers and ships by default with every Unix, Linux, and Mac server. SSH connections are used to secure many different types of applications and systems, and they have been used to manage routers, servers, and applications remotely.
In Linux, SSH is an essential tool for remote administration and file transfer. Practically every Unix and Linux system includes the ssh command, which is used to start the SSH client program that enables a secure connection to the SSH server on a remote machine. The ssh command is used for logging into the remote machine, transferring files between the two machines, and executing commands on the remote machine.
SSH provides a secure encrypted connection between two hosts over an insecure network, and this connection can also be used for terminal access, file transfers, and for tunneling other applications. Graphical X11 applications can also be run securely over SSH from a remote location.
Some frequently asked questions about SSH in Linux include:
- What does SSH stand for? SSH stands for "Secure Shell".
- What is SSH used for? SSH is used to securely connect to a remote system or server. It can be used to transfer data between two connected systems.
- What port does SSH run on? SSH runs at TCP/IP port 22.
- How can we access a Linux Machine via the Windows command prompt using SSH? We can access a Linux machine via the Windows command prompt by using SSH syntax: ssh user_name@host(IP/Domain_name) .
- How can we create public-private keys using SSH? We can create public-private keys using SSH by using the command ssh-keygen.
Overall, SSH is a reliable and efficient way to communicate securely over the internet, and it is a vital tool for Linux system administration and development.
