Windows users

Windows: Create a public and private key using putty-gen

Type putty gen in the window search bar (download and install if needed)

Click on generate and wiggle the mouse.

Save private key to :

C:\Users\username\.ssh\putty_priv.ppk

(do not ever share you private key)

Send the string in the upper grey part of the PuTTYgen window that says

"Public key for pasting into OpenSSH authorized_keys file". 
Copy and paste this into a text file or just into the email to the sys admins.

note for admins:

The key should be called/renamed authorized_keys when put in the .ssh folder in the $HOME on kennedy – this will be done by the sys admin