创建时间:2006-10-15 更新时间:2006-10-15
文章属性:转载
文章来源:internet
文章提交:root (webmaster_at_xfocus.org)
谁动了我们的DNS
2006-10-16
by 81d83889fb4a54b0d5d7e07d42c51422
本文遵从GPL协议,欢迎转载
|=------------------------------------------------------------------------=|
---------[ Table of Contents ]
0x1 - 前言
0x2 - 一些怪现象
0x2.1 -- ping一些不存在的域名
0x2.2 -- 抓包分析
0x3 - 浏览器浏览不存在域名被重定位
0x3.1 -- 现象
0x3.2 -- 抓包分析
0x4 - xxxxxx.bobodogs.com的统计数据
0x5 - www.bobodogs.com的统计数据
0x6 - 一次被引导到3721网站的过程
0x7 - 有必要看下www.jcdh.cn这个网站
0x8 - 小结
0x8.1 -- 影响用户范围
0x8.2 -- 解决办法
|=------------------------------------------------------------------------=|
---------[ 0x1 - 前言 ]
一两年前,访问网站的时候经常被重定位到北京宽带智能纠错网站去,比较烦人。
后来一段时间好象也没有了,也就没有注意了。这几天,访问网站的时候又经常出现
一些奇怪的现象。初步判断网络有点问题,当然我能确保我的系统是干净的。
使用环境 winxp sp2 firefox,北京网通ADSL拨号上网,使用DHCP自动分配IP和获得DNS,
不使用IE是因为IE自身也内嵌了3721查询,正确的说是内嵌了auto.search.msn.com.
关键字:DNS查询 ,HTTP协议,WHOIS 查询,DNS轮循
---------[ 0x2 - 一些怪现象 ]
这里就不重述DNS是如何工作的,以及DNS在整个互联网中的重要性。
---------[ 0x2.1 - ping一些不存在的域名 ]
先来看看一些现象:
======================================================================
ping fuck12334566.com
Pinging fuck12334566.com [202.108.251.209] with 32 bytes of data:
Reply from 202.108.251.209: bytes=32 time=17ms TTL=247
Reply from 202.108.251.209: bytes=32 time=16ms TTL=247
Ping statistics for 202.108.251.209:
Packets: Sent = 2, Received = 2, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 16ms, Maximum = 17ms, Average = 16ms
Control-C
^C
ping fuck12334566.com
Pinging fuck12334566.com [202.108.251.209] with 32 bytes of data:
Reply from 202.108.251.209: bytes=32 time=15ms TTL=247
Ping statistics for 202.108.251.209:
Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 15ms, Maximum = 15ms, Average = 15ms
Control-C
^C
ping fuck12334567.com
Pinging fuck12334567.com [202.108.251.209] with 32 bytes of data:
Reply from 202.108.251.209: bytes=32 time=17ms TTL=247
Ping statistics for 202.108.251.209:
Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 17ms, Maximum = 17ms, Average = 17ms
Control-C
^C
ping fuck12334568.com
Pinging fuck12334568.com [202.108.251.207] with 32 bytes of data:
Reply from 202.108.251.207: bytes=32 time=18ms TTL=247
Reply from 202.108.251.207: bytes=32 time=17ms TTL=247
Ping statistics for 202.108.251.207:
Packets: Sent = 2, Received = 2, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 17ms, Maximum = 18ms, Average = 17ms
Control-C
^C
ping fuck12334569.com
Pinging fuck12334569.com [202.108.251.209] with 32 bytes of data:
Reply from 202.108.251.209: bytes=32 time=16ms TTL=247
Ping statistics for 202.108.251.209:
Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 16ms, Maximum = 16ms, Average = 16ms
Control-C
^C
ping fuck12334570.com
Pinging fuck12334570.com [202.108.251.206] with 32 bytes of data:
Reply from 202.108.251.206: bytes=32 time=16ms TTL=247
Ping statistics for 202.108.251.206:
Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 16ms, Maximum = 16ms, Average = 16ms
Control-C
^C
ping fuck12334571.com
Pinging fuck12334571.com [202.108.251.209] with 32 bytes of data:
Reply from 202.108.251.209: bytes=32 time=17ms TTL=247
Ping statistics for 202.108.251.209:
Packets: Sent = 1, Received = 1, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 17ms, Maximum = 17ms, Average = 17ms
Control-C
======================================================================
为什么会这样,明名胡乱打的一个域名为什么会返回一系列IP地址呢,是偶然
还是巧合?
dns服务器返回的一些ip地址
202.108.251.209
202.108.251.206
202.108.251.207
202.108.251.213
===============================================================
inetnum: 202.108.0.0 - 202.108.255.255
netname: CNCGROUP-BJ
descr: CNCGROUP Beijing province network
descr: China Network Communications Group Corporation
descr: No.156,Fu-Xing-Men-Nei Street,
descr: Beijing 100031
country: CN
admin-c: CH455-AP
tech-c: SY21-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-CNCGROUP-BJ
mnt-routes: MAINT-CNCGROUP-RR
changed: hm-changed@apnic.net 20031017
status: ALLOCATED PORTABLE
changed: hm-changed@apnic.net 20060124
source: APNIC
role: CNCGroup Hostmaster
e-mail: abuse@cnc-noc.net
address: No.156,Fu-Xing-Men-Nei Street,
address: Beijing,100031,P.R.China
nic-hdl: CH455-AP
phone: +86-10-82993155
fax-no: +86-10-82993102
country: CN
admin-c: CH444-AP
tech-c: CH444-AP
changed: abuse@cnc-noc.net 20041119
mnt-by: MAINT-CNCGROUP
source: APNIC
person: sun ying
address: fu xing men nei da jie 97, Xicheng District
address: Beijing 100800
country: CN
phone: +86-10-66030657
fax-no: +86-10-66078815
e-mail: suny@publicf.bta.net.cn
nic-hdl: SY21-AP
mnt-by: MAINT-CNCGROUP-BJ
changed: suny@publicf.bta.net.cn 19980824
changed: hm-changed@apnic.net 20060717
source: APNIC
===============================================================
---------[ 0x2.2 - 抓包分析 ]
抓包分析下
===============================================================
Frame 3 (93 bytes on wire, 93 bytes captured)
Ethernet II, Src: Vmware_fc:4e:c4 (00:50:56:fc:4e:c4), Dst: Vmware_2b:e7:dd (00:0c:29:2b:e7:dd)
Internet Protocol, Src: 192.168.174.2 (192.168.174.2), Dst: 192.168.174.132 (192.168.174.132)
User Datagram Protocol, Src Port: domain (53), Dst Port: 1326 (1326)
Domain Name System (response)
Transaction ID: 0xc627
Flags: 0x8180 (Standard query response, No error)
Questions: 1
Answer RRs: 1
Authority RRs: 0
Additional RRs: 0
Queries
fuck123445452.com: type A, class IN
Name: fuck123445452.com
Type: A (Host address)
Class: IN (0x0001)
Answers
fuck123445452.com: type A, class IN, addr 202.108.251.213
Name: fuck123445452.com
Type: A (Host address)
Class: IN (0x0001)
Time to live: 1 minute
Data length: 4
Addr: 202.108.251.213
===============================================================
很显然dns服务器告诉我们的就是:fuck123445452.com的ip地址为202.108.251.213
---------[ 0x3 - 浏览器浏览不存在域名被重定位 ]
---------[ 0x3.1 - 现象 ]
再来看看http协议上的问题,我们用firefox敲了一个网址进去
www.chinatesttesttest.com (特意查了下,这个域名是还没有被人注册的) ,
结果返回回来的是
===============================================================
无法显示网页
您正在查找的页当前不可用。 网站可能遇到支持问题,或者您需要 调整您的浏览器
设置。
请尝试以下操作:
* ·单击 refresh.gif (82 字节) 刷新按钮,或稍后重试。
* ·如果您已经在地址栏中输入该网页的地址, 请确认其拼
==============================================================
是不是觉得奇怪呢,是的,不奇怪才怪了呢
---------[ 0x3.2 - 抓包分析 ]
抓包分析吧
firefox的动作
★ 第一步
查询www.chinatesttesttest.com的ip地址,如上一样dns服务器返回
202.108.251.215
★ 第二步
2.1 向202.108.251.215发送GET / HTTP/1.1\r\n请求。
2.2 202.108.251.215返回数据
===============================================================
Hypertext Transfer Protocol
Line-based text data: text/html
<html>
<head>
<style>body{margin:0px;padding:0px;overflow:hidden;}</style>
<!--<script language="javascript" type="text/javascript" src="http://xxxxxx.bobodogs.com/"></script>-->
</head>
<body>
<iframe name="iframe0" src="http://www.jcdh.cn/1.html?url=www.chinatesttestest.com/" WIDTH="100%" HEIGHT="100%" FRAMEBORDER="0" />
<!--xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx-->
</body>
</html>
===============================================================
ok这里出现了bobodogs.com和jcdh.cn这两个网站。
看看这两个网站分别是什么
jcdh.cn是北京宽带网网站。(后补:是乍看是)
bobodogs.com是博博狗。
他们俩什么关系??
===============================================================
jcdh.cn whois 信息
Domain Name jcdh.cn
Domain Status ok
Registrant Name 吕先生
Administrative Email dayu2008@163.com
Sponsoring Registrar 北京万网志成科技有限公司
Name Server dns11.hichina.com
Name Server dns12.hichina.com
Registration Date 2006-09-15 14:11
Expiration Date 2007-09-15 14:11
===============================================================
bobodogs whois 信息
Domain Name: BOBODOGS.COM
Registrar: HICHINA WEB SOLUTIONS (HONG KONG) LIMITED
Whois Server: grs.hichina.com
Referral URL: http://whois.hichina.com
Name Server: DNS12.HICHINA.COM
Name Server: DNS11.HICHINA.COM
Status: ACTIVE
EPP Status: ok
Updated Date: 18-Jul-2006
Creation Date: 18-Jul-2006
Expiration Date: 18-Jul-2008
[grs.hichina.com]
Domain Name ..................... bobodogs.com
Name Server ..................... dns11.hichina.com
dns12.hichina.com
Registrant ID ................... hc468722731-cn
Registrant Name ................. HAICHUAN LI
Registrant Organization ......... LI HAICHUAN
Registrant Address .............. BEIJING
Registrant City ................. BEIJING
Registrant Province/State ....... BEIJING
Registrant Postal Code .......... 100029
Registrant Country Code ......... CN
Registrant Phone Number ......... +86.01058208009 -
Registrant Fax .................. +86.01058208005 -
Registrant Email ................ ponyring@gmail.com
Administrative ID ............... hc468722731-cn
Administrative Name ............. HAICHUAN LI
Administrative Organization ..... LI HAICHUAN
Administrative Address .......... BEIJING
Administrative City ............. BEIJING
Administrative Province/State ... BEIJING
Administrative Postal Code ...... 100029
Administrative Country Code ..... CN
Administrative Phone Number ..... +86.01058208009 -
Administrative Fax .............. +86.01058208005 -
Administrative Email ............ ponyring@gmail.com
Billing ID ...................... hichina001-cn
Billing Name .................... hichina
Billing Organization ............ HiChina Web Solutions Limited
Billing Address ................. 3/F., HiChina Mansion
No.27 Gulouwai Avenue
Dongcheng District
Billing City .................... Beijing
Billing Province/State .......... Beijing
Billing Postal Code ............. 100011
Billing Country Code ............ CN
Billing Phone Number ............ +86.01064242299 -
Billing Fax ..................... +86.01064258796 -
Billing Email ................... domainadm@hichina.com
Technical ID .................... hichina001-cn
Technical Name .................. hichina
Technical Organization .......... HiChina Web Solutions Limited
Technical Address ............... 3/F., HiChina Mansion
No.27 Gulouwai Avenue
Dongcheng District
Technical City .................. Beijing
Technical Province/State ........ Beijing
Technical Postal Code ........... 100011
Technical Country Code .......... CN
Technical Phone Number .......... +86.01064242299 -
Technical Fax ................... +86.01064258796 -
Technical Email ................. domainadm@hichina.com
Expiration Date ................. 2008-07-18 06:21:34
===============================================================
★ 第三步:
根据返回回来的数据,firefox继续访问www.jcdh.cn ,GET 1.html?url=www.chinatesttestest.com
这次返回的数据如下:
===============================================================
Hypertext Transfer Protocol
Line-based text data: text/html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<html>
<head>
<style>
a:link\t\t\t{font:9pt/12pt \313\316\314\345; color:red}
a:visited\t\t{font:9pt/12pt \313\316\314\345; color:#4e4e4e}
img\t\t\t\t\t{display:none;}
img.dis\t\t\t{display:inline;}
</style>
<script language="javascript" type="text/javascript">window.status="\315\352\261\317";</script>
<script language="javascript" type="text/javascript" src="http://xxxxxx.bobodogs.com/1.shtml"></script>
<meta HTTP-EQUIV="Content-Type" Content="text-html; charset=gb2312">
<title>bobodogs.com \325\322\262\273\265\275\267\376\316\361\306\367</title>
</head>
<body bgcolor="white">
<table width="400" cellpadding="3" cellspacing="5">
<tr>
<td id="tableProps" valign="top" align="left"><img class="dis" id="pagerrorImg" SRC="res://shdoclc.dll/pagerror.gif"
width="25" height="33"></td>
<td id="tableProps2" align="left" valign="middle" width="360"><h1 id="textSection1"
style="COLOR: black; FONT: 13pt/14pt \313\316\314\345"><span id="errorText">\316\336\267\250\317\324\312\276\315\370\322\263</span></h1>
</td>
</tr>
<tr>
<td id="tablePropsWidth" width="400" colspan="2"><font
style="COLOR: black; FONT: 8pt/11pt verdana">\304\372\325\375\324\332\262\351\325\322\265\304\322\263\265\261\307\260\262\273\277\311\323\303\241\243
\315\370\325\276\277\311\304\334\323\366\265\275\326\247\263\326\316\312\314\342\243\254\273\362\325\337\304\372\320\350\322\252
\265\367\325\373\304\372\265\304\344\257\300\300\306\367\311\350\326\303\241\243</font></td>
</tr>
<tr>
<td id="tablePropsWidth" width="400" colspan="2"><font id="LID1"
style="COLOR: black; FONT: 9pt/12pt \313\316\314\345"><hr color="#C0C0C0" noshade>
<p id="LID2">\307\353\263\242\312\324\322\324\317\302\262\331\327\367:</p><ul>
<li id="instructionsText1">\265\245\273\367
<a xhref="javascript:location.reload()" target="_self">
\t <img class="dis" border=0 src="res://shdoclc.dll/refresh.gif" width="13" height="16" alt="refresh.gif (82 \327\326\275\332)" align="middle"></a> <a xhref="javascript:location.reload()" target="_self">\313\242\320\302</a>\260\264\305
</li>
<li id="instructionsText2">\310\347\271\373\304\372\322\321\276\255\324\332\265\330\326\267\300\270\326\320\312\344\310\353\270\303\315\370\322\263\265\304\265\330\326\267\243\254
\307\353\310\267\310\317\306\344\306\264\320\264\325\375\310\267\241\243<br>
</li>
<li id="instructionsText3">\322\252\274\354\262\351\304\372\265\304\315\370\302\347\301\254\275\323\243\254\307\353\265\245\273\367<b>\271\244\276\337</b>\262\313\265\245\243\254\310\273\272\363\265\245\273\367
<b>Internet \321\241\317\356</b>\241\243\324\332<b>\301\254\275\323</b>\321\241\317\356\277\250\311\317\243\254\265\245\273\367<b>\311\350\326\303</b>\241\243
\311\350\326\303\261\330\320\353\323\353\304\372\265\304\276\326\323\362\315\370 (LAN) \271\334\300\355\324\261\273\362 Internet \267\376\316\361\271\251\323\246\311\314 (ISP) \314\341\271\251\265\304\322\273\326\302\241\243 </li>
<li ID="list4">\262\351\277\264\304\372\265\304 Internet \301\254\275\323\311\350\326\303\312\307\267\361\325\375\310\267\261\273\274\354\262\342\241\243\304\372\277\311\304\334\311\350\326\303\310\303 Microsoft Windows \274\354\262\3
<OL>
<li id="instructionText6">\265\245\273\367<b>\271\244\276\337</b>\262\313\265\245\243\254\310\273\272\363\265\245\273\367<B>Internet \321\241\317\356</b>\241\243 </li>
<li id="instructionText7">\324\332<b>\301\254\275\323</b>\321\241\317\356\277\250\311\317\243\254\265\245\273\367<b>LAN \311\350\326\303</b>\241\243</li>
<li id="instructionText8">\321\241\324\361<b>\327\324\266\257\274\354\262\342\311\350\326\303</b>\243\254\310\273\272\363\265\245\273\367<b>\310\267\266\250</b>\241\243</li>
</OL>
</li>
<li id="instructionsText5">
\304\263\320\251\325\276\265\343\322\252\307\363 128-\316\273\265\304\301\254\275\323\260\262\310\253\320\324\241\243\265\245\273\367<b>\260\357\326\372</b>\262\313\265\245\243\254\310\273\272\363\265\245\273\367<b>\271\330\323\332
</li>
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\310\347\271\373\304\372\322\252\267\303\316\312\304\263\260\262\310\253\325\276\265\343\243\254\307\353\310\267\261\243\304\372\265\304\260\262\310\253\311\350\326\303\304\334\271\273\326\247\263\326\241\243\307\353\265\245\273\367
</li>
<li id="list3">\265\245\273\367<a href="javascript:history.back(1)"><img class="dis" valign=bottom border=0 src="res://shdoclc.dll/back.gif">\311\317\322\273\262\275</a>\260\264\305\245\243\254\263\242\312\324\306\344\313\373\301\264\
</ul>
<p><br>
</p>
<h2 id="IEText" style="font:9pt/12pt \313\316\314\345; color:black">\325\322\262\273\265\275\267\376\316\361\306\367\273\362 DNS \264\355\316\363<BR> Internet Explorer</h2>
</font></td>
</tr>
</table>
<script language="javascript" type="text/javascript" src="http://js.users.51.la/549643.js"></script>
<noscript><a href="http://www.51.la/?549643" target="_blank"><img alt="我要啦免费统计" src="http://img.users.51.la/549643.asp" style="border:none" /></a></noscript>
</body>
</html>
===============================================================
这个页面就是上面我们看到了
===============================================================
无法显示网页
您正在查找的页当前不可用。 网站可能遇到支持问题,或者您需要 调整您的浏览器
设置。
请尝试以下操作:
* ·单击 refresh.gif (82 字节) 刷新按钮,或稍后重试。
* ·如果您已经在地址栏中输入该网页的地址, 请确认其拼
==============================================================
下半部分见:http://zbc98.blog.sohu.com/18024849.html
最后修改于 2006-10-24 13:45
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