title: connect to raspberry pi through public internet
body: <p>I have a raspberry pi and I have a program which has to run only when I want it from an app.
  So, basically need to connect to my raspberry pi from public internet.
  Not sure about this, I think I need to make my raspberry pi ssh from public internet, i.e. connect directly through some IP address.</p>
  
  <p>How can I do this? I am trying to connect to my linux system through simple ssh and its not working. Any guides and pointers to go about?</p>
  
  <p>Thanks</p>