On Tue, Jan 07, 2020 at 12:20:01PM +0000, Niall O'Reilly wrote: > What's surprising is that an authoritative name server > shows both a decremented TTL value (as if it were answering > from cache) and the AA flag.
These days, another kind of authoritative nameservice seems to have arrived - the "reverse proxy" idea adapted to DNS. It may forward an authoritative query upstream, cache the result and return an authoritative answer counting down the TTL. We know this scheme well as a forwarder during resolution, but it appears it's being used in authoritative service too. _______________________________________________ dns-operations mailing list dns-operations@lists.dns-oarc.net https://lists.dns-oarc.net/mailman/listinfo/dns-operations
