I just run teleporter on my primary and manually upload that backup to my secondary. My blocklists and local DNS dont change much, so its not a big concern of mine.
Nebula-Sync and Orbital-Sync may be of interest to you. It seems like you want to automate the syncing.
Why do you have more than one? Is this for an enterprise-level situation?
So the whole house doesn’t go down and/or need to be reconfigured to do an update
I've found that if I set primary as pihole and secondary as, say 1.1.1.1. then, my android phone will pick either one seemingly randomly. So my local DNS doesn't work.
My workaround was to do two pihole. I forget how I sync them though.
I see. I set my router's DNSs to pihole for the first and then one of adguard's public IPs for the second.
Pihole runs on dnsmasq right? Maybe you could create a cronjob to copy the underlying dnsmasq.conf to other Piholes
I run unbound alongside pihole for extra privacy and I keep my unbound config in git. I have gitea set up to push out new unbound configs every time there’s a git push.
Multiple Piholes?
I have a "main" Pihole on a Raspberry Pi, and I set up another instance in a VM for secondary functions.
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