安装方法一:编译安装(安装成功)

 wget http://ex-parrot.com/~pdw/iftop/download/iftop-  0.17pre3.tar.gz

  yum -y install gcc libpcap-devel* ncurses-devel (可能要装tcpdump)

  tar -zxf iftop-0.17pre3.tar.gz

  cd iftop-0.17pre3

  ./configure

  make&&make install

安装方法2:(懒人办法,最简单 没测试过)

直接省略上面的步骤

CentOS系统:

yum install flex byacc  libpcap ncurses ncurses-devel

wget ftp://fr2.rpmfind.net/linux/dag/redhat/el5/en/i386/dag/RPMS/iftop-0.17-1.el5.rf.i386.rpm

rpm -ivh iftop-0.17-1.el5.rf.i386.rpm