We tried. Its "we don't get enough complaints" so we won't actually ask our nameserver vendor how to fix this despite us telling them that they just need to add a CNAME record to the backend zone.
The load balancer has a front end that answers A and AAAA queries. CNAME/TXT/SOA and "unsual" A and AAAA queries are passed to the backend (a regular nameserver). This backend is not configured with a CNAME record for ardownload.wip4.adobe.com / airdownload.wip4.adobe.com so it returns NXDOMAIN. Adding CNAME records to the regular zone will fix some of the errors with these nameservers. There are other errors which require the load balancer vendor to fix. Mark In message <54b50f21.6010...@imperial.ac.uk>, Phil Mayers writes: > Just to save anyone else the trouble, I've just found that some of the > GSLB names for *.adobe.com return NXDOMAIN with "nsid" options present: > > # dig +norec +dnssec +nsid @193.104.215.247 ardownload.wip4.adobe.com > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 50062 > > ...versus: > > # dig +norec +dnssec @193.104.215.247 ardownload.wip4.adobe.com > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20650 > > ;; ANSWER > SECTION: <etc. etc.> > > I will make a (doubtless futile) effort to contact them, but if anyone > has a decent route in... > _______________________________________________ > 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 -- 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
