In message <1401433477.99469.yahoomail...@web121601.mail.ne1.yahoo.com>, Jiann- Ming Su writes: > > > > > On Friday, May 30, 2014 12:34 AM, Mark Andrews <ma...@isc.org> wrote: > > > > > In message > <1401424053.51486.yahoomail...@web121604.mail.ne1.yahoo.com>, > > 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: ma...@isc.org _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
