On Fri, 31 Jan 2025 15:41:29 -0500 "Brian J. Murrell via FreeIPA-users" <[email protected]> wrote:
> Is there any supported configuration that instructs a slave replica to > first forward DNS queries to the master replica's DNS server and only > if it is down, to try to resolve recursively on it's own? > > The goal here is to leverage the cache of the master replica to reduce > outbound queries from the slave replica. > > Ultimately, I want the slave replica to be as quiet/unloaded as > possible and only really be used in the case of the master replica > being down, if that helps the context any. > > This is for a small slave host in a very small network -- one where > even a single replica is more than enough to satisfy the clients, but > just looking to add redundancy and major version O/S upgrade paths > (since FreeIPA cannot do in-place upgrades on EL and must use a replica > to replicate from one the O/S major version upgrade is done -- assuming > that is still the state of FreeIPA's in-place upgrade limitations -- on > EL8 at least). > > Cheers, > b. > If you set them as primary and secondary DNS servers, all requests will still go to the primary, only if it's unreachable will the clients fail over to the secondary.
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