I got this current setup, where I have a physical server behind a Comcast router with port 80 forwarded. In that physical server I got several Virtualboxes running with Centos 7 also. Each Virtualbox has its own domain but they are not reachable. One domain is: adivix.com
I have checked locally and NGiNX is running correctly where I see the test page.
This is a graphic representation of the setup:
http://i.imgur.com/qxpVqNR.png
Can someone please advise in what I am missing?