In message <20150812185911.5b3e524...@orac.inputplus.co.uk>, Ralph Corderoy writes: > AIUI, forgetting SkyDNS exists, it's allowable for a stub resolver to be > configured to talk to a server that can answer authoritatively for the > CNAME and the A, thus some clarification may be needed.
Stub resolvers are written as if they are talking to recursive *servers*. A lot of assumption break when that is not met. Whether those servers have authoritative zones on not is irrelevent. The question is do they build a response that is consistent with a RA=1 response (for when the server contains the entire DNS universe for that stub client otherwise I would be saying it require RA=1). DiG warns about non RA=1 answers for RD=1 queries because this usually indicates a error either in resolv.conf pointing a non recursive server or failure to clear RD=1 when talking to a authoritative only server. > Cheers, Ralph. > > _______________________________________________ > DNSOP mailing list > DNSOP@ietf.org > https://www.ietf.org/mailman/listinfo/dnsop -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
