Maybe I'm hoping for something that's not possible but I thought that by setting this value to specific machine domains, it would prevent AGS from responsding to requests from other places. Is that not the jist of it?
I can still access the map services on this box from:
I haven't found anything that's "blocked"
What should I expect from this property being set?
Am I missing another step?
I'll following the steps here: Restricting cross-domain requests to ArcGIS Server—Documentation (10.3 and 10.3.1) | ArcGIS for Serv...