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centos实时查看网卡流量

centos实时查看网卡流量-「腾达签名」

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.

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

监控某网卡:

iftop -i eth0 -n

同时显示是什么服务:

iftop -i eth0 -n -P

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centos实时查看网卡流量-「腾达签名」
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