when i check resolver.log just now , i found some error info about AAAA ( ipv6)

[Mark Andrews]

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 <570DC310.1060202 at 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
> 
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org