首先尝试最简单的命令:yum -y install iftop
如果不成功则采用编译安装的方式:
yum -y install libpcap libpcap-devel ncurses ncurses-devel
wget http://www.ex-parrot.com/pdw/iftop/download/iftop-0.17.tar.gz
tar -zxvf iftop-0.17.tar.gz
cd iftop-0.17
./configure
make
make install