这篇文章出自一个对专业知识十窍通九窍的普通网民之手，专业的看到别笑话。。 站.长站
域名劫持应该是最近一个比较热门的话题了吧，电信、网通相继开始利用自己的垄断地位明目张胆的劫持域名，GOOGLE上有187,000项符合域名劫持的查询结果，对ISP的域名劫持还没有什么完美的解决方案，就说说本人解决的过程吧。 Www~~com
首先，我立刻想到换DNS， GOOGLE了下，结果自己不知道用什么关键词，于是想到直接用根DNS，直接GOOGLE到如下，PING值是本人的，四川电信小区宽带，圆括号内为拥有组织，数据采自www.who.is和APNIC .com
Pinging a.root-servers.net [198.41.0.4](VeriSign Infrastructure & Operations) with 32 bytes of data:Ping statistics for 198.41.0.4:Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), Www..com
Pinging b.root-servers.net [192.228.79.201](B.Root-Server-OPS) with 32 bytes of data:Ping statistics for 192.228.79.201:Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = 358ms, Maximum = 364ms, Average = 360ms 中国站长_站,为中文网站提供动力
Pinging c.root-servers.net [192.33.4.12](Performance Systems International Inc.) with 32 bytes of data:Ping statistics for 192.33.4.12:Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = 350ms, Maximum = 354ms, Average = 352ms
Pinging d.root-servers.net [128.8.10.90](University of Maryland) with 32 bytes of data:Ping statistics for 128.8.10.90:Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = 437ms, Maximum = 445ms, Average = 440ms 中国站长.站
Pinging e.root-servers.net [192.203.230.10](National Aeronautics and Space Administration) with 32 bytes of data:Ping statistics for 192.203.230.10:Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), .com
Pinging f.root-servers.net [192.5.5.241192.36.148.17](Internet Systems Consortium, Inc) with 32 bytes of data:Ping statistics for 192.5.5.241:Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = 64ms, Maximum = 64ms, Average = 64ms 中国站.长站
Pinging g.root-servers.net [192.112.36.4](DoD Network Information Center) with 32 bytes of data:Ping statistics for 192.112.36.4:Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), Www..com
Pinging h.root-servers.net [128.63.2.53] (U.S. Army Research Laboratory)with 32 bytes of data: Www..com
Ping statistics for 128.63.2.53:Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),Approximate round trip times in milli-seconds:Minimum = 308ms, Maximum = 309ms, Average = 308ms Www__com
Pinging i.root-servers.net [192.36.148.17](RIPE Network Coordination Centre) with 32 bytes of data:Ping statistics for 192.36.148.17:Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = 67ms, Maximum = 68ms, Average = 67ms
Pinging j.root-servers.net [192.58.128.30](VeriSign Global Registry Services) with 32 bytes of data:Ping statistics for 192.58.128.30:Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = 157ms, Maximum = 158ms, Average = 157ms 站.长.站
Pinging k.root-servers.net [193.0.14.129](RIPE Network Coordination Centre ) with 32 bytes of data:Ping statistics for 193.0.14.129:Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = 380ms, Maximum = 394ms, Average = 385ms 中国站长_站,为中文网站提供动力
Pinging l.root-servers.net [198.32.64.12](Exchange Point Blocks) with 32 bytes of data:Ping statistics for 198.32.64.12:Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = 351ms, Maximum = 357ms, Average = 354ms ^com
Pinging m.root-servers.net [202.12.27.33](The University of TokyoInformation Technology Center) with 32 bytes of data:Ping statistics for 202.12.27.33:Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),Approximate round trip times in milli-seconds:Minimum = 108ms, Maximum = 110ms, Average = 109ms 中国站.长.站
Pinging n.root-servers.net [61.139.8.100](CHINANET Sichuan province networkData Communication Division) with 32 bytes of data:Ping statistics for 61.139.8.100:Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), 站.长.站
注意啦，众所周知现在投入使用的域名根服务器只有1个，也就是说n.root-servers.net是不存在的，本应该返回Name does not exist，现在被劫持到电信的114搜索去了。然后给电信的vnet.cn带来可观的流量（感兴趣的ALEXA一下就知道了）。 Www~~com
然后我就选了192.5.5.241和192.36.148.17这两个PING值比较低的DNS，然后改拨号连接的DNS，然后就无法正常上网了，nslookup一下，得到这样的结果。
Server: [192.5.5.241]Address: 192.5.5.241 中国站.长.站
Name: cxlyx.cnServed by:- NS.CERNET.NET202.112.0.44cn- A.DNS.cn203.119.25.1cn- B.DNS.cn203.119.26.1cn- C.DNS.cn203.119.27.1cn- D.DNS.cn203.119.28.1cn- E.DNS.cn203.119.29.1cn
突然想起根DNS只负责浏览器.com和.net的解析。。 @com
然后换上国内的DNS，203.119.25.1和203.119.26.1，还是无法解析。。得到结果如下（我一直用EDITDNS.NET提供的免费DNS解析，比国内的新网、万网好用多了，记录条数无限） 站.长.站
文章整理：西部数码--专业提供域名注册、虚拟主机服务
http://www.west263.com
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