Does anyone know if there is a feature in any Beta or in the roadmap for DNS conditional forwarding?
For example proxy any DNS requests for internal domains to internal DNS servers, and proxy all other requests to external DNS servers?
This would help if the internal DNS servers were unavailable due to a VPN outage at the DC or something, local branch services that don't rely on internal services can continue to operate using the local internet and external DNS servers.
something similar to these vendor's implementations:
DNS conditional forwarding (fortinet.com)
Cisco SD-WAN (Viptela) Configuration Guide, Release 17.2
Configure DNS Settings (vmware.com)