关于DNS服务器一个神奇的问题

[Wang Guoqin]

昨天晚上在实验室上网，发现docs.google.com不能上了，用翻墙工具却可以上，看来是被GFW了；但回到寝室却发现没有问题了。于是今天研究了一下，发现实验室的电脑通过本机BIND9获得的IP地址与寝室电脑通过教育网DNS服务器获得的IP地址居然不一样

寝室：
ubuntu@ubuntu:~$ nslookup docs.google.com
Server: 202.120.127.220
Address: 202.120.127.220#53

Non-authoritative answer:
docs.google.com canonical name = writely.l.google.com.
Name: writely.l.google.com
Address: 209.85.143.101
Name: writely.l.google.com
Address: 209.85.143.102
Name: writely.l.google.com
Address: 209.85.143.100
可以正常访问

实验室：
wgq@debian:/usr/lib/qt4/examples$ nslookup docs.google.com
Server: 127.0.0.1
Address: 127.0.0.1#53

Non-authoritative answer:
docs.google.com canonical name = writely.l.google.com.
Name: writely.l.google.com
Address: 72.14.203.113
Name: writely.l.google.com
Address: 72.14.203.100
Name: writely.l.google.com
Address: 72.14.203.101
Name: writely.l.google.com
Address: 72.14.203.102
无法正常访问，只能靠翻墙

进而发现实验室获得的这个IP是无法访问的。很奇怪，不知道为什么。难道是ZF和google又签了某个协议，在国内架服务器了？大家有空试试看，获得的是哪个IP啊
--
Mon Mar 9 19:23:11 CST 2009

[李玉北]

$ nslookup docs.google.com
Server:         202.96.209.6
Address:        202.96.209.6#53

Non-authoritative answer:
docs.google.com canonical name = writely.l.google.com.
Name:   writely.l.google.com

Address: 72.14.203.100

Name:   writely.l.google.com
Address: 72.14.203.113
Name:   writely.l.google.com

Address: 72.14.203.101
Name:   writely.l.google.com
Address: 72.14.203.102

2009/3/9 Wang Guoqin <wangguo...@gmail.com>

--
Xi'an JiaoTong University
Software Engineering School
http://leeight.appspot.com

[york zhuo]

 nslookup docs.google.com
Server:        202.109.15.135
Address:    202.109.15.135#53

Non-authoritative answer:
docs.google.com    canonical name = writely.l.google.com.
Name:    writely.l.google.com
Address: 72.14.203.100
Name:    writely.l.google.com
Address: 72.14.203.113
Name:    writely.l.google.com

Address: 72.14.203.102
Name:    writely.l.google.com
Address: 72.14.203.101

能正常登录
不过在公司不行了，我还没太以为是被墙了，还以为是老板封了呢

2009/3/9 李玉北 <lee...@gmail.com>

--
＝＝＝＝＝＝＝＝＝＝＝
-york.zhuo

[Wang Guoqin]

现在我只能用iptables做DNAT了，重定向到209.85.143.101，效果还不错，你也试试吧。

On Mar 9, 11:02 pm, york zhuo <yorkz...@gmail.com> wrote:
> nslookup docs.google.com
> Server: 202.109.15.135
> Address: 202.109.15.135#53
>
> Non-authoritative answer:
> docs.google.com canonical name = writely.l.google.com.
> Name: writely.l.google.com
> Address: 72.14.203.100
> Name: writely.l.google.com
> Address: 72.14.203.113
> Name: writely.l.google.com
> Address: 72.14.203.102
> Name: writely.l.google.com
> Address: 72.14.203.101
>
> 能正常登录
> 不过在公司不行了，我还没太以为是被墙了，还以为是老板封了呢
>

> 2009/3/9 李玉北 <leei...@gmail.com>

>
>
>
> > $ nslookup docs.google.com
> > Server: 202.96.209.6
> > Address: 202.96.209.6#53
>
> > Non-authoritative answer:
> > docs.google.com canonical name = writely.l.google.com.
> > Name: writely.l.google.com
> > Address: 72.14.203.100
> > Name: writely.l.google.com
> > Address: 72.14.203.113
> > Name: writely.l.google.com
> > Address: 72.14.203.101
> > Name: writely.l.google.com
> > Address: 72.14.203.102
>

> > 2009/3/9 Wang Guoqin <wangguoqin1...@gmail.com>
>
> > 昨天晚上在实验室上网，发现docs.google.com

[Bruce Wang]

2009/3/10 Wang Guoqin <wangguo...@gmail.com>:

> 现在我只能用iptables做DNAT了，重定向到209.85.143.101，效果还不错，你也试试吧。
>
> On Mar 9, 11:02 pm, york zhuo <yorkz...@gmail.com> wrote:
>>  nslookup docs.google.com
>> Server:        202.109.15.135
>> Address:    202.109.15.135#53
>>

用opendns就没问题

--
simple is good
http://brucewang.net
http://twitter.com/number5

[kiol ou]

用opendns就没问题

2009/3/10 Bruce Wang <num...@gmail.com>:

[Lufy]

偶取到的地址是这个
Address: 218.83.175.155

>.<

On 3月10日, 上午3时11分, kiol ou <o...@kiolsora.com> wrote:
> 用opendns就没问题
>
> 2009/3/10 Bruce Wang <numb...@gmail.com>:
>
>
>
> > 2009/3/10 Wang Guoqin <wangguoqin1...@gmail.com>:

> >> 现在我只能用iptables做DNAT了，重定向到209.85.143.101，效果还不错，你也试试吧。
>
> >> On Mar 9, 11:02 pm, york zhuo <yorkz...@gmail.com> wrote:
> >>> nslookup docs.google.com
> >>> Server: 202.109.15.135
> >>> Address: 202.109.15.135#53
>
> > 用opendns就没问题
>
> > --
> > simple is good
> >http://brucewang.net

> >http://twitter.com/number5- 隐藏被引用文字 -
>
> - 显示引用的文字 -