V2EX = way to explore V2EX 是一个关于分享和探索的地方
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This topic created in 4001 days ago, the information mentioned may be changed or developed.
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 ; (1server 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？
Supplement 1 May 15, 2015
顺带，四个八和opendns的查询结果是在海外主机上做的，肯定不是功夫网的缘故。
现在我是暂时用223.5.5.5解析出来的结果写到本机的dns服务器里了。
现在我是暂时用223.5.5.5解析出来的结果写到本机的dns服务器里了。
 | 1 zts1993 May 15, 2015 今天我用了chinadns 间接性的不能解析 |
 | 2 palxex May 15, 2015 已重复此测试结果。 |
 | 3 xieyingli May 15, 2015 我不用科学网络倒是突然能上了。。。 |
 | 4 zado May 15, 2015 |
 | 5 kguogk May 15, 2015 下午4点以后到现在，https://www.v2ex.com，间断性找不到服务器错误。 |
 | 6 dib May 15, 2015 via Android 手机上网 溜溜的 |
 | 7 virusdefender May 15, 2015 我今天下午也是时不时不能解析v2ex |
 | 9 morethansean May 15, 2015 公司DNS一天了，都不能解析 |
 | 10 pelloz May 15, 2015 电信的一直可以直接用https://www.v2ex.com来访问，不用梯子 |
 | 11 lzb May 15, 2015 表示马鞍山移动不能访问.. |
 | 13 Livid MOD PRO 是我们权威 DNS 的问题。 会在 24 小时内恢复。 明天就正常了。 |
| 14 Livid MOD PRO 10 分钟内会恢复。 |
 | 16 CinderellaCiCi May 18, 2015 “权威DNS” “uxengine.net. 599 IN SOA ns3.dnsv4.com. enterprise2dnsadmin.dnspod.com. 1431655787 3600 180 1209600 180” 好奇Dnspod有神马问题？ |
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