Just another broken nameserver that doesn't handle AAAA queries correctly. It answers authoritatively for dlb.g5.letvlb.com/A but returns a referral for dlb.g5.letvlb.com/AAAA with unrelated additional records.
Mark % dig dlb.g5.letvlb.com @106.38.226.245 ; <<>> DiG 9.11.0a1 <<>> dlb.g5.letvlb.com @106.38.226.245 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61581 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; WARNING: recursion requested but not available ;; QUESTION SECTION: ;dlb.g5.letvlb.com. IN A ;; ANSWER SECTION: dlb.g5.letvlb.com. 600 IN A 123.59.122.228 ;; Query time: 359 msec ;; SERVER: 106.38.226.245#53(106.38.226.245) ;; WHEN: Wed Apr 13 14:16:20 EST 2016 ;; MSG SIZE rcvd: 68 % dig dlb.g5.letvlb.com @106.38.226.245 aaaa ; <<>> DiG 9.11.0a1 <<>> dlb.g5.letvlb.com @106.38.226.245 aaaa ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44441 ;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 3 ;; WARNING: recursion requested but not available ;; QUESTION SECTION: ;dlb.g5.letvlb.com. IN AAAA ;; AUTHORITY SECTION: dlb.g5.letvlb.com. 600 IN NS ns1.letvlb.com. dlb.g5.letvlb.com. 600 IN NS ns2.letvlb.com. dlb.g5.letvlb.com. 600 IN NS ns3.letvlb.com. ;; ADDITIONAL SECTION: au.ns1.letvlb.com. 600 IN A 111.206.208.224 au.ns2.letvlb.com. 600 IN A 106.38.226.245 au.ns3.letvlb.com. 600 IN A 117.121.2.237 ;; Query time: 492 msec ;; SERVER: 106.38.226.245#53(106.38.226.245) ;; WHEN: Wed Apr 13 14:16:25 EST 2016 ;; MSG SIZE rcvd: 269 % In message <570dc310.1060...@yahoo.com>, johnzeng writes: > > Hello Dear Sir : > > when i check resolver.log just now , i found some error info about AAAA > ( ipv6) > > although i search some helpful info from ask.com , but i can't find the > config file , maybe the reason is i compiled via source file ( > ./configure --prefix=/mydic ). > > Whether i need build the config file ? > > > > This of course won't stop bind from blindly trying to use ipv6 though, > so you also need to alter |/etc/default/bind9| like so: > > |# run resolvconf? > RESOLVCONF=yes > # startup options for the server > OPTIONS="-4 -u bind" > | > > > > > 13-Apr-2016 11:49:11.858 DNS format error from 106.38.226.245#53 > resolving dlb.g5.letvlb.com/AAAA for client 127.0.0.1#53325: > non-improving referral > 13-Apr-2016 11:49:11.898 DNS format error from 111.206.208.224#53 > resolving dlb.g5.letvlb.com/AAAA for client 127.0.0.1#53325: > non-improving referral > 13-Apr-2016 11:49:11.939 DNS format error from 117.121.2.237#53 > resolving dlb.g5.letvlb.com/AAAA for client 127.0.0.1#53325: > non-improving referral > > _______________________________________________ > 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