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@lidaobing
Created April 18, 2013 06:15
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$ host a.alipayobjects.com 8.8.8.8
Using domain server:
Name: 8.8.8.8
Address: 8.8.8.8#53
Aliases:
Host a.alipayobjects.com not found: 5(REFUSED)
$ host a.alipayobjects.com 8.8.4.4
Using domain server:
Name: 8.8.4.4
Address: 8.8.4.4#53
Aliases:
Host a.alipayobjects.com not found: 2(SERVFAIL)
$ host baidu.com 8.8.8.8
Using domain server:
Name: 8.8.8.8
Address: 8.8.8.8#53
Aliases:
baidu.com has address 220.181.111.85
baidu.com has address 220.181.111.86
baidu.com has address 123.125.114.144
baidu.com mail is handled by 20 mx1.baidu.com.
baidu.com mail is handled by 20 jpmx.baidu.com.
baidu.com mail is handled by 20 mx50.baidu.com.
baidu.com mail is handled by 10 mx.mailcdn.baidu.com.
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