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我将内网所有请求公网的查询全部转发到...公网的111.231.33.52这个DNS上...但有半数会出现,第一遍为DNS request timed out.第二次就能成功..当然有些是一次就成功了.
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>sohu.com
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to dns1.yyy.com timed-out
> sohu.com
Server: aaa
Address: 192.168.20.1
Non-authoritative answer:
Name: sohu.com
Addresses: 61.135.181.176, 61.135.181.175
forward only ;
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请问我该怎么办~~??
(PS:能不能加些缓存机制~~我想让缓存时间长些..另DNS缓存能保存多少条查询呢~?这个能设置吗?)
[ 本帖最后由 itasen 于 2009-2-26 10:19 编辑 ] |
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