In message <[email protected]>, Jiann- Ming Su writes: > > > > > On Friday, May 30, 2014 12:34 AM, Mark Andrews <[email protected]> wrote: > > > > > In message > <[email protected]>, > > Jiann- > > Ming Su writes: > >> > >> > >> Looking through the traces of the NXDomain vs NoError responses. The > >> NoError response includes the list of the Internet root servers. This > >> would definitely be a valid response for a "." query. I wonder > > if I've > >> run into a bug with this particular version of BIND where it ignores > or > >> changes the actual query with a "." lookup. Hence the NoError > > response > >> with the full list of root servers. > > > > Apply Occams Razor. The client made a "." query. > > > > Named returns the query it was asked. It it pointless to return > > anything else as the client is supposed to check and discared answers > > that don't match. > > > > Except in the packet capture, both the response and query packets clearly > shows the query to be for the SRV record, not for ".". This is a pretty > old version of BIND9, so I'm not going to file a bug report. I > appreciate your insights; they helped me work through what we're > observing with this app. It's unfortunate that these applications are > still pointing to two generation old DNS infrastructure. The risks of > not updating.
You are mis-reading the packet capture. No version of BIND has this behaviour all the way back to 4.8.3. Mark -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: [email protected] _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list [email protected] https://lists.isc.org/mailman/listinfo/bind-users
