系统和网络设施：Linux 系统下一个基于控制台的网络统计工具。
iptraf 集多种数据，TCP 连接的字节数、数据包、统计和活动指标、TCP / UDP 通行故障、本地站点包和二进制字节计算。
呃，刚使用 yum，发现可以找到这个工具。既然如此，那么就使用 yum 安装。
[root@searu ~]# yum -y install iptraf
yum install iptraf
[root@searu ~]# iptraf -h
语法：iptraf [-f] [{ -i iface | -g | -d iface | -s iface | -z iface |
-l iface } [-t timeout] [-B] [-L logfile] [-I interval] ]
iptraf 命令选项：
-i iface – start the IP traffic monitor (use “-i all” for all interfaces)
-g – start the general interface statistics
-d iface – start the detailed statistics facility on an interface
-s iface – start the TCP and UDP monitor on an interface
-z iface – shows the packet size counts on an interface
-l iface – start the LAN station monitor (“-l all” for all LAN interfaces)
-B – run in background (use only with one of the above parameters)
-t timeout – when used with one of the above parameters, tells
the facility to run only for the specified number of
minutes (timeout)
-L logfile – specifies an alternate log file for any direct invocation
of a facility from the command line. The log is placed in
/var/log/iptraf if path is not specified.
-I interval – specifies the log interval for all facilities except the IP
traffic monitor. Value is in minutes.
-f – clear all locks and counters. Use with great caution.
Normally used to recover from an abnormal termination.
IPTraf 3.0.0 Copyright (c) Gerard Paul Java 1997-2004
终端直接运行 #iptraf 命令，按任意键继续，然后选择监控器。
#iptraf
如下所示，为 IP traffic minitor，all interfaces。
iptraf 监控 IP 流量
进入 iptraf 界面后，进入菜单可以配置 iptraf、规则。也可以换到其他监控器。
iptraf 下载地址：http://iptraf.seul.org/download.html
iptraf 特性：
- An IP traffic monitor that shows information on the IP traffic passing over your network. Includes TCP flag information, packet and byte counts, ICMP details, OSPF packet types.
- General and detailed interface statistics showing IP, TCP, UDP, ICMP, non-IP and other IP packet counts, IP checksum errors, interface activity, packet size counts.
- A TCP and UDP service monitor showing counts of incoming and outgoing packets for common TCP and UDP application ports
- A LAN statistics module that discovers active hosts and shows statistics showing the data activity on them
- TCP, UDP, and other protocol display filters, allowing you to view only traffic you’re interested in.
- Logging
- Supports Ethernet, FDDI, ISDN, SLIP, PPP, and loopback interface types.
- Utilizes the built-in raw socket interface of the Linux kernel, allowing it to be used over a wide range of supported network cards.
- Full-screen, menu-driven operation.
可识别协议：
- IP
- TCP
- UDP
- ICMP
- IGMP
- IGP
- IGRP
- OSPF
- ARP
- RARP
具体请访问：About IPTraf