It is not entirely clear what it is that you are trying to do. Not sure what you mean by "reach out to outside URL". Are you attempting to connect to a third party WMS server ? If so you go to Maps->Background Maps->Map Services, and you can add a WMS Server by specifying the URL.
Thanks for your reply. Will try to explain; need tableau server to be able to connect to internet using a URL (reach out to outside URL) to connect to online maps?
What URL should tableau server use to get to “online maps”?
What configuration file(?) on tableau server should be edited to add URL to get to online maps? Or is this information in a tableau document? I am trying to find a document that will have this information. Would the document be: "Configuring Communications with the Internet"?
Again, thank you for your reply!
Does this not give you what you are looking for? Use Web Map Service (WMS) Servers
You will need to identify the parent service of the WMS you need to use to obtain the URL. This is typically a third party service.
I have this document. I think we may need this document, but I am sure that there are other documents we may need also?