Map Proxy
CartoPac Server controls all interaction with ArcGIS Services through a configured Proxy.
Requests to Map Services, Basemap Services, Geometry Services, and Geoprocessing Services are all controlled through a CartoPac Proxy configuration. No ArcGIS service will return requests unless the proxy configuration is in place.
Proxy configuration is a two-step process requiring both an entry in the Web Application as well as a modification to a configuration file on the CartoPac Server.
Web Application Map Proxy Diagram
The Map Proxy tab on the Map and Esri Service Administration page defines what ArcGIS Server Hosts contain services to be integrated with CartoPac Server.
Map Proxy Tab