Access node on internal network

Newbie question.

I have gotten a node up and running on my Ubuntu server. The next step is to generate the api key and that appears to be done via a web browser. So how do I access my ubuntu server to generate the api key? When I use the ip address instead of my ubuntu server instead of 127.0.0.1 from my desktop it times out. Do I actually have to run this from the ubuntu server or can it be remotely accessed?

try 127.0.0.1:9053 in your browser if you can access it from inside the server, if not, use external IP of the server