Zitat von "W.C.A. Wijngaards" <[email protected]>:

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Hi Andreas,

Now I see this is a forward zone, so +norec no answer, because the
x.x.x.x is a recursive cache.  Somehow this cache has trouble
returning dnssec enabled data (once in a while?  Load balancer?)

Hello

no, it is a simple two stage unbound cascade. The forwarder does also act as resolver cache for the DMZ mailserver and had as said no problem resolving names during the whole outage of the internal unbound cache. During the outage i was also able to query the forwarder from the machine running the internal cache without problems, but i only tested simple A/MX queries. I guess it will be best to dumb-down the internal as cache only and let the firewall do the work, no?

Many Thanks

Andreas



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