Management console from internet

Management console from internet

I was hoping to access my DC management console from the internet.  I DO have a secure gateway server setup and have remote clients processing with no problems.  My question is, when I try to go to https://mypublicdnsaddress:8443 (which I have validate is visible to the world), all I get is a white screen.  Have I missed something or is this not the way Secure Gateway was intended?  If that is the case, is there another way to securely expose my portal to have remote managment console access?  SECURELY being the key word :) 

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