linux traffic shaping

) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/53/74/wKioL1RoDR6BI7HpAADm5H-QcHo223.jpg "title=" Qq20141116102243.jpg "alt=" Wkiol1rodr6bi7hpaadm5h-qcho223.jpg "/>650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/53/76/wKiom1RoDMzixi0MAAMjWrGAzGM275.jpg "title=" Qq20141116102307.jpg "alt=" Wkiom1rodmzixi0maamjwrgazgm275.jpg "/>Define which devices to monitor:Control Panel--build devices--Define devices--create images for devices--add new devices in the image treeConsole-->devic

In linux, tcpdump is used to monitor network traffic, and exported files are obtained to wireshark in windows to analyze the command lines in linux: tcpdump-I eth1-s 0 host 10.12.129.3-w output.txt-I indicates listening on eth1. The default value is eth0,This is not specified at the beginning, and the traffic of a cert

I have been troubled by this problem for at least two weeks. I have repeatedly reviewed a lot of information and can finally complete the configuration today. Now I'm so excited to write it down. Requirement: I want to test ipp2p traffic control, so I need to build a test environment within the company. Build a dual-nic Linux machine between my network and my company. The specific hardware architecture dia

"Unix/linux Network log analysis and Traffic monitoring" new book listing one months, sales ranked TOP 10, thank you for your support, there will be a heavy new book launch, 2015 Happy New Year!650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/57/C0/wKioL1SkpVfChn_nAAaBy3tWQs4478.jpg "title=" screen shot 2015-01-01 a.m. 8.44.22.png "alt=" Wkiol1skpvfchn_naaaby3twqs4478.jpg "/>This article is from t

Sometimes our customers will find that the server or VPS network is slow, and further find that a lot of bandwidth is occupied, some customers so far do not know how to do. Is there a simple way to figure out which program (or process) is taking up the bandwidth? Linux monitors the flow of small tools, such as Iftop, Iptraf, Ifstat, Darkstat, Bwm-ng, Vnstat, and so on, mostly statistics and monitoring network card

Inode key value structure, this file gets the IP Four tuple combination is socket level address, in order to determine the direction, need to use Ipgroup-dir Store orientation information, {local_addr+remote_addr:1} indicates uplink (upload) and {Remote_addr+local_addr:2} represents the downstream (download). Ipgroup-payload The key value structure of IP four-tuple and packet load is obtained by Pcap packet , and the Ipgroup obtained by this method is TCP/IP Ipgroup of the protocol layer , ge

The script for viewing Nic traffic in Linux (modified perfectly) Fixed the problem where a negative number is displayed.Added bits/s statisticsAdded the final average sum.#! /Bin/bash# Osdba 2008.10.22 monitor the interface's network traffic.# Zeuslion 2009.08.29.If [$ #-ne 3]; thenEcho useage: $0 interface interval countEcho example: $0 eth0 2 10ExitFiEth = $1C

According to many documents of TC, I have also compiled a configuration record. In actual use, the effect is good. I would like to share it with you for your reference.Environment: the local area network is not large enough to support more than 40 machines. Nat Internet sharing (Intranet: eth0 Internet: eth2)CBQ uses the idle time of hardware to calculate the queue. The hardware is different and the effect is different. It is better to use htb for a large network. The following methods can be us

Linux host network traffic monitoring ifstatIfstat is used in this monitoring program. Installation Method reference:Http://man.linuxde.net/ifstat1. DownloadHttp://gael.roualland.free.fr/ifstat/ (Official Website) wget http://gael.roualland.free.fr/ifstat/ifstat-1.1.tar.gzFrom: http://man.linuxde.net/ifstatYou can also download the file in a browser and use secureCRT to upload the file;2. InstallationTar -x

] #9为发送值 #return [values[1],values[9]] #可返回列表 except (Fileexistserror, Filenotfounderror,permissionerror): Print (' Openfileerror ') nBsp;sys.exit ( -1) try: whileTrue: get_values (' first ') #第一次取值 time.sleep (Ten) get_values (' second ') #10s后第二次取值 forarginsys.argv[1:]: r_bandwidth= (int (values_dic[arg+ ' r ' + ') Second ']) -int (values_dic[arg+ ' r ' + ' first '))/1024/1024/10*8 t_bandwidth= (int (values_dic[arg+ ' t ' + ') Second ']) -int (VAlues_dic[arg+ ' t ' + ' first '))/1024/1

) { Shutdown (sock, Shut_rdwr); sock =-1; } } This program first initiates a socket connection to a normal HTTP server (BAIDU,QQ,163,CSDN), and when the socket is connected, it obtains the local address of the connection binding via Getsocketname, and obtains the source port number through that address.Terminal 1: Compiling and running$ g++ Source_port.cpp$./a.out www.baidu.comConnect to www.baidu.com success.Local port:39702Terminal 2: Verification via tcpdump capture package$ sudo tcp