比如我在北京我尝试nslookup www.qq.com 202.96.128.166(广东电信dns)未查询不出结果
This topic created in 4073 days ago, the information mentioned may be changed or developed.
16 replies • 2015-04-08 08:31:05 +08:00
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ncisoft Apr 6, 2015 via iPad
大部分都是的
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xiaozhizhu1997 Apr 6, 2015
很多地区都是，但有的不是。
主要是为了最大限度防止被flood攻击，以前各省DNS都有被打挂过的历史。 |
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holinhot OP @xiaozhizhu1997 看来是的，我试了大部分地区都不行
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xiaozhizhu1997 Apr 6, 2015
@louishothot 我记得江西电信那个可以的。
另外不仅是本区域，还得是本网。我直隶电信试着访问直隶联通DNS（202.99.166.4）会被refuse |
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LoliconInside Apr 6, 2015
C:\Windows\System32\nslookup
> server 210.22.70.225 默认服务器: backup.sh.cnc171.net Address: 210.22.70.225 > baidu.com 服务器: backup.sh.cnc171.net Address: 210.22.70.225 DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. *** 请求 backup.sh.cnc171.net 超时 > 我是上海电信的，使用上海联通的DNS无法解析到结果。 |
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frjalex Apr 6, 2015
基本上除了标记是Public DNS的都会做区域限制。
如OpenDNS, GoogleDNS, V2EX, 阿里DNS和自己的山寨DNS都没有设限制。 |
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holinhot OP @LoliconInside 运营商不同肯定限制啊
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LoliconInside Apr 6, 2015
@louishothot 给个其他地区电信的DNS我试试
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lsylsy2 Apr 6, 2015
做限制是为了安全考虑。
谷歌“DNS放大攻击” |
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holinhot OP @LoliconInside 202.96.128.166
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11
snachx Apr 7, 2015 via iPhone
http://ip.cn/dns.html
这里列了各地DNS，至少江苏是限本地 |
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LoliconInside Apr 7, 2015
C:\Windows\System32\nslookup
> server 202.96.128.166 DNS request timed out. timeout was 2 seconds. 默认服务器: [202.96.128.166] Address: 202.96.128.166 > baidu.com 服务器: [202.96.128.166] Address: 202.96.128.166 DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. DNS request timed out. timeout was 2 seconds. *** 请求 [202.96.128.166] 超时 > @louishothot |
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13
LoliconInside Apr 7, 2015
@snachx 这网站有报错的地方吗？上海电信的DNS地址有个写错了
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14
snachx Apr 7, 2015 via iPhone
@LoliconInside 似乎没有可以反馈的地方
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402645707 Apr 7, 2015 via Android
运营商的dns不应该是内网的吗？
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16
yexm0 Apr 8, 2015 via Android
内网？？？？？？
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