我用的是6.97专业版，关闭自由门之后就可以上任何墙内的网站，打开后就上不了说：
The requested URL could not be retrieved
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While trying to retrieve the URL: http://jjc.cqnu.edu.cn/onews.asp?
The following error was encountered:
Unable to determine IP address from host name for jjc.cqnu.edu.cn
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, 05 Mar 2010 02:45:01 GMT by google.com (squid/2.7.STABLE6)
但是GOOGLE还是能上，在GOOGLE里打开墙内网站也不行。我改了自由门里很多设置，还是不行，而且我在自由门打开的情况下进不了罗永浩在墙外开的《牛博国际》。不知道是为什么，特此向专业人士求教！非常感谢，感谢之至！
