Hi Mark, > > http://tools.ietf.org/html/rfc1034#section-4.3.2 says > > > > If the data at the node is a CNAME, and QTYPE doesn't match > > CNAME, copy the CNAME RR into the answer section of the > > response, change QNAME to the canonical name in the CNAME RR, > > and go back to step 1. > > Actually the order of the RRsets in the answer section is defined by > that. The order of the RRsets in the other sections isn't.
You're right, just the answer section. > > but copying doesn't state an order, strictly, and 4.3.2 starts by > > saying > > > > The actual algorithm used by the name server will depend on the > > local OS and data structures used to store RRs. > > Which allows you to use a hash table instead of a tree. Or a hash > table and a tree. ... > The answers that are generated need to match those that would be > generate by processing the data in the tree structure defined > following the defined algorithm. That was my reading too, but others can and are interpreting it differently and there seems to be sufficient wriggle room to do so. Cheers, Ralph. _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
