It appears that Heiko Schlittermann via mailop <h...@schlittermann.de> said: >> Ok, I see your point. However as RFC 8020 mentions: >> "in most known existing resolvers today, a cached nonexistence for a domain >> is not considered "proof" that there can be no child domains underneath." > >Oh, that I didn't see. So thanks for the pointer. > >But - they talk about resolvers and cache. I'd assume that asking the >responsible server shouldn't return the NXDOMAIN, unless it doesn't >follow the RFC?
Correct. The whole point of RFC 8020 was to highlight buggy DNS servers that return NXDOMAIN rather than NOERROR for empty nonterminals. R's, John _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
