On Tue, Mar 15, 2016 at 03:03:28PM -0000, John Levine <jo...@taugh.com> wrote a message of 12 lines which said:
> If the query finds an entry in the cache, why wouldn't it use it? 00:00:00 Cache receives a reply with a AAAA record for foobar.example, with a TTL of 86400 01:00:00 Cache receives a reply NXDOMAIN when asking QNAME=example 02:00:00 Cache receives a AAAA request for foobar.example With today's software, the cache will reply (the TTL is not over). I find that a violation of the tree model of the DNS. I find more elegant if cache replies NXDOMAIN. Note that both behaviour will have the same result for the upstream servers: in both cases, the cache won't send a query to them. _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
