一直都很懒,所以我喜欢用yum,这次是安装iftopLOL


yum install flex byacc  libpcap ncurses ncurses-devel

wget ftp://fr2.rpmfind.net//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

然后使用iftop来查看咯