The ConnectionRestrictions section allows the Host to be configured such that all connections to it must come from a listed Gateway for:
uRemote control and related services, which prevents Peer-to-Peer connections from the PROXY Pro Master
uHost administration and remote management, such as updating Host Settings through the Deployment Tool
Note that Hosts will not be accessible for connectivity through the PROXY Pro Master's Peer-to-Peer Hosts tab with the first checkbox ticked. PROXY Pro RAS customers can disable Peer-to-Peer connections entirely with this checkbox so that any and all connections made to Hosts must be performed through the RAS server where connectivity rights to Hosts are centrally enforced.