title: Putty Google Cloud compute
body: <p>I am very new to google cloud and putty. 
  My question is when I open putty on my computer and type in the EXTERNAL IP into putty. I screen opens up and asks me for a Login.. my question is what do i put in for my login. Is it the google username account ? a better question would be where can I find the login and password that I need to login to VM </p>