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所属分类：Basic
今天介绍一款linux下监控即时宽带使用情况的软件iftop，iftop可以查看流量动态，帮助你解决、查找网络慢的问题.
当然查看网卡流量工具还有iptraf、nethogs等等，今天主要推荐iftop！
软件安装：
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cd /byrd/tools/ wget http://www.ex-parrot.com/~pdw/iftop/download/iftop-0.17.tar.gz tar zxf iftop-0.17.tar.gz cd iftop-0.17 yum install flex byacc libpcap ncurses ncurses-devel libpcap-devel ./configure --prefix=/byrd/service/iftop-0.17 make && make install |
软件参数：
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[root@hk iftop-0.17]# /byrd/service/iftop-0.17/sbin/iftop -h iftop: display bandwidth usage on an interface by host Synopsis: iftop -h | [-npbBP] [-i interface] [-f filter code] [-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 code use filter code 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 iftop, version 0.17 copyright (c) 2002 Paul Warren <pdw@ex-parrot.com> and contributors |
界面说明：
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"<="与"=>"，表示的是流量的方向 "TX"：从网卡发出的流量 "RX"：网卡接收流量 "TOTAL"：网卡发送接收总流量 "cum"：iftop开始运行到当前时间点的总流量 "peak"：网卡流量峰值 "rates"：分别表示最近2s、10s、40s 的平均流量 |
