Use iftop to monitor network traffic and iftop to monitor network traffic
Iftop is a useful tool. The following command monitors the wireless network card of my notebook
iftop -i wlan0
For example, if I play a video of letv, The iftop displays the following information:
Basic description:
1. the main part of the sc
Monitor linux traffic for shell and linux traffic for shell
If you want to view linux traffic in real time and do not want to go to a third-party tool, you can directly write and run it!
System: centos 6.5
Principle: Get the traffic from/proc/net/dev, and then get the
In Linux/Unix-like systems, you can use top to view system resources, processes, memory usage, and other information. To view the network status, you can use tools such as netstat and nmap. To view real-time network traffic and monitor TCP/IP connections, you can use iftop. What is iftop? Iftop is mainly used to display the network traffic of the local machine an
In Linux/Unix-like systems, you can use top to view system resources, processes, memory usage, and other information. To view the network status, you can use tools such as netstat and nmap. To view real-time network traffic and monitor TCP/IP connections, you can use iftop.
What is iftop?
Iftop is mainly used to display the network traffic of the Local Machine a
Comment: In Unix-like systems, you can use top to view system resources, processes, memory usage, and other information. To view the network status, you can use tools such as netstat and nmap. To view real-time network traffic and monitor TCP/IP connections, you can use iftop. I. What is iftop? Iftop is a real-time traffic monitoring tool similar to top. Official
Introduction
MRTG (Multi Router Traffic Grapher, MRTG) is a tool software used to monitor network link traffic load. It obtains device traffic information through the SNMP protocol, in addition, the traffic load is displayed to the user in HTML document containing PNG format
Use Ntop to monitor network traffic
____ Network traffic reflects the running status of the network, which is the key data for determining whether the network is running normally. In the actual network, if the network traffic is not well controlled or the network is congested, this will cause a decrease in network thro
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If no configuration error occurs, XP may occasionally fail to access the Internet. If the routers in gns3 can access the Internet, restart XP. If the vro cannot access the Internet, restart gns3.
3. How does prtg monitor network and bandwidth utilization?
Prtg can run on a Windows system 24 hours a day and continuously record network utilization parameters. The recorde
Nload is a very useful traffic monitoring tool with powerful functions. it can monitor network card traffic in real time, including Incoming and Outgoing, that is, inbound and outbound traffic CentOS.
NloadIt is a very useful traffic monitoring tool with powerful functions.
software. This article uses its powerful traffic Graphic System Host Table to monitor network traffic in real time. In terms of monitoring software, we chose the sniffer pro, which is commonly used by NAI companies. In fact, many Internet cafe administrators have experience in monitoring the network: when there is a network problem or network conditions are expl
Install vnStat on CentOS to monitor ECs traffic
In addition to the Panel provided by the service provider, we can also install vnStat to monitor the upstream and downstream traffic of your VPS or server on a daily basis. The vnStat installation method is simple, which can be divided into compilation and installation or
In addition to the panel provided by the service provider, we can also install vnStat to monitor the upstream and downstream traffic of your VPS or server on a daily basis. the vnStat installation method is simple, which can be divided into compilation and installation or direct installation through the source. 1. Compile and install this method for all Linux releases. first, download vnStat: wgethttp: // h
LAN traffic similar to the use of network resources, enterprise LAN intranet devices, with how much network traffic, where are these network traffic? Whether it is related to work, this is essential to the management of Internet behavior of enterprises. So monitoring the local area network of computers (mobile phones, mobile devices) occupy how much
/mrtg/usr/local/mrtg/shareOrder Deny,allow# Deny from allAllow from allAllow from 127.0.0.1Allow from:: 1# Allow from. example.comWe can access it through HTTP://IP/MRTG, the effect is as follows:Through the above we can view the traffic information of the switch in real-time, but we want to realize the traffic monitoring alarm, we need nagios to read the MRTG monitor
Nethogs is a small, free open source command-line tool used to count network bandwidth usage in real time by process or program.For use similar to "repo tool", "Depot_tools" and other tools checkout source code is very useful, you can view the current download speed information, so you do not blindly wait.Installation under Ubuntu system
sudo apt-get install Nethogs
How to use
Nethogs [-d] [-h] [-P] [-t] [-v] [device (s)]
THE-D switch delay for the refresh r
additional charges.
When using this feature, it is recommended that you set the usage cycle in the following figure "②", which is the same as your carrier traffic settlement date.
The slider in the following figure "③" can be pulled through the touch of a finger to set the warning and limiting flow value, and when the warning is worth more, there will be a corresponding hint in the status bar, and the system will automatically close
Because Digitalocean does not find the ability to observe the used traffic, there is a need to know their traffic usage, so installed vnstat.Installation process is very simple, see Baidu Experience, the official homepage and so on.1. After the installation of Vnstat, the direct command vnstat-i Eth0 can see the traffic situation (initially will wait for a period
. cfg file. There are two methods:
1. Just delete comments and modify them to point to the device you want to monitor. You need to have a good understanding of the MIB or OID information. If possible, you can add it later.
2. It is also a simple method. You only need to use the generator maker to enable MRTG to automatically create a mrtg. cfg (configuration file ). The method is as follows:
Use consumer maker
Command
Registrant maker public@192.168.
order of magnitudeif[[$RX-lt1024x768]]; ThenRX="${rx}b/s" elif[[$RX-GT1048576]]; ThenRX=$(Echo$RX |awk '{print $1/1048576 "MB/S"}') $STATUS="Busy" ElseRX=$(Echo$RX |awk '{print $1/1024 "kb/s"}') fi# To determine if the sending traffic is larger than the MB level, the MB units are displayed, otherwise the KB order of magnitudeif[[$TX-lt1024x768]]; ThenTX="${tx}b/s" elif[[$TX-GT1048576]]; ThenTX=$(Echo$TX |awk '{print $1/1048576 "MB/S"}')
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