这是什么问题?

用squid/2.6,客户机有的网站出现一下提示,是什么问题呢?

The requested URL could not be retrieved

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While trying to retrieve the URL: http://netfilter.filewatcher.org/

The following error was encountered:

Unable to determine IP address from host name for netfilter.filewatcher.org
The dnsserver returned:

Name Error: The domain name does not exist.
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 Mon, 01 Apr 2002 03:24:37 GMT by linuxser (squid/2.6-DEVEL-20020330) 　　　　　　

我上午就碰到了这个问题，你修改squid.conf：

http_access allow all