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[public-dns-discuss] Google public ipv6 dns can not resolve the domains of Chinese aliyun



root@backup:/home/bhzhu# cat /etc/resolv.conf
#nameserver 8.8.8.8
#nameserver 8.8.4.4

nameserver 2001:4860:4860::6464
nameserver 2001:4860:4860::8888
#nameserver 8.8.8.8
#nameserver 8.8.4.4
root@backup:/home/bhzhu# ping www.landi.com
ping: unknown host www.landi.com
root@backup:/home/bhzhu# ping www.abc360.com
ping: unknown host www.abc360.com
root@backup:/home/bhzhu# ping release.abc360.cn
PING release.abc360.cn (114.55.16.86) 56(84) bytes of data.
64 bytes from 114.55.16.86: icmp_req=1 ttl=23 time=274 ms
64 bytes from 114.55.16.86: icmp_req=2 ttl=23 time=274 ms
^C
--- release.abc360.cn ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 274.410/274.413/274.416/0.003 ms
root@backup:/home/bhzhu# dig www.landi.com

; <<>> DiG 9.8.4-rpz2+rl005.12-P1 <<>> www.landi.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 38213
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.landi.com.            IN    A

;; Query time: 5051 msec
;; SERVER: 2001:4860:4860::6464#53(2001:4860:4860::6464)
;; WHEN: Thu Feb 22 03:26:27 2018
;; MSG SIZE  rcvd: 31

root@backup:/home/bhzhu# dig release.abc360.cn

; <<>> DiG 9.8.4-rpz2+rl005.12-P1 <<>> release.abc360.cn
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 18528
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;release.abc360.cn.        IN    A

;; ANSWER SECTION:
release.abc360.cn.    599    IN    A    114.55.16.86

;; Query time: 221 msec
;; SERVER: 2001:4860:4860::6464#53(2001:4860:4860::6464)
;; WHEN: Thu Feb 22 03:26:43 2018
;; MSG SIZE  rcvd: 51



Google public ipv6 dns  can not resolve the domains of Chinese aliyun,but  DNSPOD  successfully.And Chinese public ipv6 dns(240c::6666   240c::6644) can  resolve  aliyun domains sucessfully.What is the problem ?Please help. Thanks

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