We have a local server with a domain name and DNS, all only accessible on a LAN or via VPN. We use this to maintain a few services synced up.
Is there a way to disable phones from trying to access those addresses when not connected to the local SSID or VPN? They wouldn't be able to connect anyways, and it would help to avoid it constantly trying to resolve the address.
We've considered a hosts file approach, but that would just block those addresses entirely.