Enable SSH (Secure Shell) in Elementary Luna / Ubuntu

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

or

sudo gedit /etc/ssh/sshd_config

For a simple and quick SSH client, click here to download Putty.