I am a beginner in this field, but I am trying hard to succeed. If I say something that doesn't make sense, please correct me. I am going to buy a raspberry pi 2, and I'm intending to put Kali Linux on it, but I would like the functionality to connect back like in this post. But after many Google searches, my answer is somewhat mixed. Every example I've seen uses local IP addresses to connect back, but I intend to use it in remote situations. What can I do?