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High availability / Re: Unbound DNS registration not working for failover DHCP configuration

« on: December 12, 2023, 10:59:50 am »

Hello!, did anybody test this further?. I have the same situation, we're some hostnames can be resolved (whatever was served by firewall A, but any lease served by firewall B fails to resolve).

I understand static mapping would "solve" this, but it not always desired (highly dynamic environments)

As DNS By itself is capable of providing ultimate redundancy -> the whole internet relies on that principle  , couldn't it make sense to just use the DNS function which is intended for this case? I talk about using DNS-Replication. so "Opnsense device 2" just replicates from "Opnsense device 1" and in case of failure "Opnsense device 2" continues to work, only new DNS-Records will not be created automatically, till you exchange the primary and secondary role.

regards

M.