yum search iptraf

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Loading mirror speeds from cached hostfile

 * base: mirrors.yun-idc.com

 * extras: mirrors.sina.cn

 * updates: mirrors.sina.cn

========================================================================= N/S Matched: iptraf ==========================================================================

iptraf.x86_64 : A console-based network monitoring utility

  Name and summary matches only, use "search all" for everything.

➜  php-5.5. yum install iptraf -y