The issue I am facing:
I want to setup my EdgeRouter 10X to play a role as a Keep Alive server where it will check the two pi-hole availability and prioritize the one in docker, with full sync between them as databases and long term stat/graph data.
Details about my system:
I have pi-hole installed on Raspberry pi 1 and it is my primary DNS and it is working.
I recently set up a second pi-hole inside of a docker container on my new debian server.
I have set up my EdgeRouter 10X a NAT rule to forward all traffic on port 53 to pi-hole.
What I have changed since installing Pi-hole:
Installed second pi-hole into a docker container.