To get started, press Ctrl – Alt – T on your keyboard to open Terminal. or open your gnome-Terminal (If installed)
When it opens, run the commands below to install SSH Server.
sudo apt-get install openssh-server That's it! , if you need to change default port and stuff , edit the below file sudo vi /etc/ssh/sshd_config
sudo gedit /etc/ssh/sshd_config For a simple and quick SSH client, click here to download Putty.