問題：
當(dāng)使用代理訪問網(wǎng)站時出現(xiàn)以下錯誤：
========================================
The requested URL could not be retrieved

While trying to retrieve the URL: http://linkhelp.clients.google.com/tbproxy/lh/fixurl?

The following error was encountered:

??? Unable to determine IP address from host name for linkhelp.clients.google.com

The dnsserver returned:

??? Timeout

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 root.
========================================

解決方法：
這是由于代理服務(wù)器機器的DNS配置問題，代理服務(wù)器機器不能找到指定url的ip地址導(dǎo)致。檢查/etc/resolv.conf文件配置是否正確，如不正確添加正確的配置信息，比如說：
nameserver ###.###.###.###
nameserver ###.###.###.###
可以配置多個DNS server。
重新啟動squid服務(wù)。

轉(zhuǎn)載于:https://www.cnblogs.com/wdpp/archive/2009/11/18/2386377.html

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