iftop介绍
Iftop 主要用来显示本机网络流量情况及各相互通信的流量集合，如单独同那台机器间的流量大小，非常适合于代理服务器和iptables服务器使用。
iftop安装
1、安装依赖
- yum install libpcap-devel ncurses-devel
2、开始安装
- wget http://www.ex-parrot.com/pdw/iftop/download/iftop-0.17.tar.gz
- tar xzf iftop-0.17.tar.gz
- cd iftop-0.17
- ./configure
- make && make install
如何使用
直接执行iftop即可运行查看流量情况。
执行iftop -h得到帮助信息
- [root@www ~]#iftop -h
- iftop: display bandwidth usage on an interface by host
-
- Synopsis: iftop -h | [-npbBP] [-i interface] [-f filter coolcode] [-N net/mask]
-
- -h display this message
- -n don't do hostname lookups
- -N don't convert port numbers to services
- -p run in promiscuous mode (show traffic between other
- hosts on the same network segment)
- -b don't display a bar graph of traffic
- -B Display bandwidth in bytes
- -i interface listen on named interface
- -f filter coolcode use filter coolcode to select packets to count
- (default: none, but only IP packets are counted)
- -F net/mask show traffic flows in/out of network
- -P show ports as well as hosts
- -m limit sets the upper limit for the bandwidth scale
- -c config file specifies an alternative configuration file
官方网站：http://www.ex-parrot.com/pdw/iftop/