Linux上的網路流量監控程式iftop

在Linux上我常使用iptraf去監控本機的網路流量，然而今天又發現到了另一套簡單而有用的程式也可以在Linux上監控流量，它叫做iftop

以下是在CentOS6中的安裝與使用：

1. 抓取source:

# wget ftp://rpmfind.net/linux/dag/redhat/el6/en/i386/dag/RPMS/iftop-0.17-1.el6.rf.i686.rpm

(這是i386的版本 for CentOS6)

2. 安裝:

# rpm -ivh iftop*

3. 使用:

# iftop

。

4. 加上-P，顯示port number:

More parameters:

[root@centos6 ~]# 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 and contributors

[root@centos6 ~]#