On Tue, Aug 11, 2015 at 05:00:05PM +0100, Ralph Corderoy wrote: > That still leaves open the question of whether the stub resolvers can > assume, as many have apparently been doing for years, that they will be > given CNAME before A.
In general, RRsets aren't ordered. Now, I think a CNAME response that also chases the CNAME (and there's a live question about whether the authoritative-only server ought to do that anyway, but let's assume it's all in-zone to make this simple) is not returning one RRset in the answer section, but I don't think there's any promise anywhere about what order the RRsets come in. Therefore any client that is depending on an order has made a mistake. Best regards, A -- Andrew Sullivan a...@anvilwalrusden.com _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop