Cant connect to ServiceDesk plus port 8080 externally

Cant connect to ServiceDesk plus port 8080 externally

I can connect to port 8080, through my local lan and if I use free anonymous proxy site it works from any pc over the internet but if I just type my free dns name into browser it cant find page.

Im using Ubuntu desktop 14 for the server.


                  New to ADSelfService Plus?