如图,用阿里和114查询www.v2ex.com能查到,四个八和openDNS查不到。
~/rails/ewhine_NB (5.0.0_dev)$ dig @114.114.114.114 www.v2ex.com
; <<>> DiG 9.8.1-P1 <<>> @114.114.114.114 www.v2ex.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62627
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.v2ex.com. IN A
;; ANSWER SECTION:
www.v2ex.com. 1032 IN CNAME v2ex.global.zgslb.net.
v2ex.global.zgslb.net. 161 IN CNAME v2ex.china.uxengine.net.
v2ex.china.uxengine.net. 30 IN A 222.187.0.66
;; Query time: 26 msec
;; SERVER: 114.114.114.114#53(114.114.114.114)
;; WHEN: Fri May 15 16:37:22 2015
;; MSG SIZE rcvd: 115
~/rails/ewhine_NB (5.0.0_dev)$ dig @223.5.5.5 www.v2ex.com
; <<>> DiG 9.8.1-P1 <<>> @223.5.5.5 www.v2ex.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 31650
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.v2ex.com. IN A
;; ANSWER SECTION:
www.v2ex.com. 15 IN CNAME v2ex.global.zgslb.net.
v2ex.global.zgslb.net. 15 IN CNAME v2ex.china.uxengine.net.
v2ex.china.uxengine.net. 15 IN A 222.187.0.66
;; Query time: 58 msec
;; SERVER: 223.5.5.5#53(223.5.5.5)
;; WHEN: Fri May 15 16:37:27 2015
;; MSG SIZE rcvd: 115
nagae-memooff@nagae-memooff:~$ dig @8.8.8.8 www.v2ex.com
; <<>> DiG 9.9.5-3ubuntu0.2-Ubuntu <<>> @8.8.8.8 www.v2ex.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58565
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;www.v2ex.com. IN A
;; ANSWER SECTION:
www.v2ex.com. 1769 IN CNAME v2ex.global.zgslb.net.
v2ex.global.zgslb.net. 264 IN CNAME v2ex.china.uxengine.net.
;; AUTHORITY SECTION:
uxengine.net. 599 IN SOA ns3.dnsv4.com. enterprise2dnsadmin.dnspod.com. 1431655787 3600 180 1209600 180
;; Query time: 246 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Fri May 15 16:39:30 CST 2015
;; MSG SIZE rcvd: 183
解析cname的时候,到了v2ex.china.uxengine.net之后,国内dns能给出IP,国外DNS就给不出IP了,这个跟GFW没关系,肯定不是dns劫持的事儿。
域名出了什么问题吗?
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