the machine in question has winserver 2016 and IIS 10.
ArcGIS Enterprise pre-installed and not configured ("esri" image in the MS Azure market).
Now I'm in the process of installing and configuring the WebAdaptor.
In previous installations I checked that the URL I was using to access the webadaptor was the external DNS so that I could access arcgis server and portal from outside through port 80.
Inthis installation, I have problems in doing so for Portal in the sense that when I click on "Cofigure" in "https://<my_external_DNS>/arcgis/webadaptor/portal", it says that configuration succeeded, but the link provided does not work (a blank page shows up).
I typed in as the portal URL "https://<my_external_DNS>:7443" for portal.
For ArcGIS Server it does not even configure. I receive an error saying "Additional non-parsable characters are at the end of the string".
To be precise: https://beagis.westus2.cloudapp.azure.com:7443 redirects to https://bea-arcgis-srv.1radqad4t4hulcabelsigtpwqb.xx.internal.cloudapp.net:7443/arcgis/home/ . I think this is the problem and this is how the installation provided with the image was dsigned.
If I use the internal_DNS I can succesfully configure the WebAdaptor, but I had other problems, like not being able to login to arcgis/rest/services (after pressing login I was receiving a Timeout Exceed error).
The only source I could find to be of help was this other thread, specifically one comment saying "I had a similar problem on my Windows network system. Seems it was because I had initially setup things using our internal network names (before installing our SSL certs). I needed to unregistered portal from the Web Adapter and then go through the setup using the public domain name the cert was applied to.".
I need this to work as it should have been easier than installing everything from scratch, but it is getting even way harder...
Aprreciate any help.