Apache :: How To Access Server From Outside World

I have a local network with modem, router, and several computers either Cat5 to router or via wireless. Router is Cisco Linksys E4200. The internal IP for this router would be 192.168.1.1.One of the computers has Ubuntu Server 14.04 (32-bit) and Apache 2 installed, and this is hardwired (Cat5) to the router. This computer also has a STATIC IP address that we will call 192.168.1.100. my Windows 7 Ultimate computer, I can open a browser and type "192.168.1.100" and the Apache 2 Ubuntu Default Page will pop up telling me that "It works!".

I have the Apache server working since I can access from within my LAN.My problem is to get it to show me the same "It Works!" when I try to access from the Internet.I got my 'external IP' address by simply going to whatismyip.com, and I can also see it from within my router settings.

The next thing I did was to setup Port Forwarding inside the router, to point say 50505 to 192.168.1.100. I've tried lots of port numbers.I cannot see my Apache 2 Default page by typing in my browser "98.180.213.110:50505", for example. This assumes 98.180.213.110 is my external IP and 50505 is the port I am forwarding.

I've tried disabling the IP4 firewall within the router, and even the "anonymous" filter request setting.I can find my web-server via browser in-house, but I cannot access from my external IP as if I were at a different location.