ping產生的DUP！解決方法

[root@localhost php-5.3.27]# ping baidu.comphp PING baidu.com (111.13.101.208) 56(84) bytes of data.網絡 64 bytes from 111.13.101.208: icmp_seq=1 ttl=49 time=26.6 mside 64 bytes from 111.13.101.208: icm

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