Trying to better understand the connection between Active Directory and the RDS server. We have a VM that runs our terminal (RDS) server and another VM for DHCP/DNS/AD of course. When I add a user to the domain it adds it in AD as a member of the domain users group. I then have to add the user to the Remote Operators group and VPN users group if this user needs to connect remotely. My question is: Where and how does the connection happen on the server running AD when I add the group of Remote Operators and VPN users to the user? I know that the RDS server role is setup for this but how does adding a user to the group TALK or connect to the RDS server? Sorry if I'm not asking this correctly.