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如何解决南电信北网通跨网访问web速度问题?看了一下新浪
公司的web服务器在上海电信机房,在全国各地的访问速度不均,北方的用户比较慢,有时北京的adsl用户基本不能访问。
应该是电信,网通跨网的问题。
想解决这个问题,就看了一下新浪的web站点,以为他们用的是CDN,但这玩意很贵的。
nslookup了一下www.sina.com.cn,结果如下:
- >; www.sina.com.cn
- Server: ns.fhnet.cn.net
- Address: 202.99.8.1
- Non-authoritative answer:
- Name: libra.sina.com.cn
- Addresses: 61.135.152.71, 61.135.152.72, 61.135.152.73, 61.135.152.74
- 61.135.152.75, 61.135.152.76, 61.135.152.77, 61.135.152.78, 61.135.152.79
- 61.135.152.80, 61.135.152.81, 61.135.152.82, 61.135.153.175, 61.135.152.68
- 61.135.152.69, 61.135.152.70
- Aliases: www.sina.com.cn, jupiter.sina.com.cn
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随便看看其中一台http://61.135.152.73/:得到:
- ERROR
- The requested URL could not be retrieved
- --------------------------------------------------------------------------------
- While trying to retrieve the URL: http://61.135.152.73/
- The following error was encountered:
- Access Denied.
- Access control configuration prevents your request from being allowed at this time. Please contact your service provider if you feel this is incorrect.
- Your cache administrator is webmaster.
- --------------------------------------------------------------------------------
- Generated Thu, 17 Feb 2005 12:09:44 GMT by autoinstall.sina.com.cn (squid/2.5.STABLE5)
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哦,原来他们用的是(squid/2.5.STABLE5) ,估计是做web反向代理。
但看他们的IP,也是连续的网段,肯定要么在网通,要么在电信,那为什么各地访问sina都比较快呢?
求教?? |
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