How to properly implement a DNS hidden master scenario in ISPConfig
The scenario currently implemented with a different panel: The panel has a local bind service running, and (master) zones/records are managed via its UI. An external service provides DDoS resilient DNS servers that should mirror the zones in slave mode via DNS protocol. Firewall denies all traffic on 53, except when source is in the external service range to allow syncing.
Is this something that can be achieved in ISPConfig in a way that will persist through upgrades and allow using the UI for zone management?
Thank you in advance!