As first publically reported by Greg Walton
, China blocked blogspot.com on Jan. 9, 2003. We believe that China blocked it because Chinese are retrieving DynaWeb IPs to gain access to forbidden sites. (DynaWeb is a proxy network that supports encrypted proxy and CGI proxy. )
12/23/02: DynaWeb first publicized dweb.blogspot.com to its subscribers.
12/25/02: DynaWeb publicized dweb.blogspot.com into Chinese news media (outside China of course).
1/8/03: Between 5:30am-5:40am, dweb.blogspot.com experience dramatic traffic drop.
1/9/03 2am EST: DynaWeb received the first report that dweb.blogspot.com can't be accessed from China. It was then verified that the IP of blogspot.com was blocked. Therefore, all bloggers hosting their blog on this site will no longer be accessible from China as well.
Besides IP blocking, China also hijacked the domain name "dweb.blogspot.com". (see http://www.dit-inc.us/hj-09-02.html for more details of the DNS hijacking.) However, other subdomains are not hijacked. This can be verified from outside China. Here is a screen output you can reproduce:
C:\>nslookup dweb.blogspot.com ns4.bta.net.cn
C:\>nslookup bill.blogspot.com ns4.bta.net.cn
C:\>nslookup blogspot.com ns4.bta.net.cn
Here you can see that dweb.blogspot.com is the one Communist party pick up to be the most subversive among all bloggers to be on the DNS hijacking list.
So when this blocking happen? Log of dweb.blogspot.com must be a good source of info to see this,
1. It is one of the most popular Chinese page.
2. Most readers are from IPs in China. One will visit this blog only if they are blocked in China. (Not now, while you are reading this. :) )
We process some statistic on 1/8 (sorry, they use California time, which is GMT -8, EST is GMT -5, I can convert all those time later on after I find new ways for Chinese to get Dynaweb IP.)
Those data are saying that it is blocked between 2:30am-2:40am on 1/8.
Here is the data on 1/8:
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