用的逍遥游2.1版，翻了墙能上国外网站了，但开国内网站就打不开了。哥们儿们怎么设置的啊？？？

The requested URL could not be retrieved

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While trying to retrieve the URL: http://www.sina.com.cn/

The following error was encountered:

Unable to determine IP address from host name for www.baidu.com
The dnsserver returned:

Server Failure: The name server was unable to process this query.
This means that:

The cache was not able to resolve the hostname presented in the URL.
Check if the address is correct.
Your cache administrator is webmaster.



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Generated Fri, 19 Aug 2011 09:09:49 GMT by google.com (squid/2.7.STABLE6)

象 baidu.com 這種網站，封鎖了自由門，不能通過自由門上吧。