splunk network monitoring

18 Common commands for monitoring network bandwidth on a Linux serverThis article describes some of the Linux command-line tools that you can use to monitor network usage. These tools can monitor data transmitted over a network interface and measure the speed at which data is being transmitted. The inbound traffic is d

or 10 seconds or 40 seconds is calculated by B switch;Press T to toggle whether the total traffic for each connection is displayed;Press L to turn on the screen filtering function, enter the characters to filter, such as IP, press ENTER, the screen will only show this IP-related traffic information;Press L to toggle the scale on the top of the display screen, and the flow graph bar will change depending on the scale;Press J or press K to scroll up or down the screen to display the connection re

I. DescriptionIn the network application, the network status of the user device needs to be monitored in real time for two purposes:(1) Let users know their network status, to prevent some misunderstandings (such as the application of incompetence)(2) According to the user's network status intelligent processing, save

Nethogs, the latest network monitoring tool in CentOS Nethogs is a network traffic monitoring tool on a terminal. It displays the bandwidth usage of each process, so that the network usage can be obtained more intuitively. It supports IPv4 and IPv6 protocols, local NICs, and

Because of work requirements, I often use a tool in Linux:Nagios Figure-Nagios Use Nagios to monitor the network of servers on the network 1. Implementation Principle Various servers in the network need to be managed and maintained, and the administrator cannot monitor the status of each server in a timely manner. At this time, the software function is required

Article title: Configure SmokePing network monitoring. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. RHEL-5.3 ========================================================== ================================ [Actual needs] As a website company, we usually require the IT depa

Recently, the company's traffic suddenly increased, after inquiring about the room, a total of two server traffic is relatively large. One is the resources to provide download upload (normal), there is a club, Member login Center traffic is very large (not normal). All install a iftop tool to see the network card, as well as the traffic accounted for by IP. Also looked up some information on the Internet. This tool is still very useful, can clearly se

2. Detailed Network connection StatusA total of 12 possible states, the first 11 are based on the TCP connection established three handshake and the TCP connection broken four wave process to describe.1), LISTEN: First, the server needs to open a socket for monitoring, the status of listen./* the socket is listening for incoming connections. Listening for connection requests from remote TCP ports */2), Syn_

When the server is doing the testing, it needs to monitor the network traffic to understand the network usage of the server at different numbers of times.We use the server environment is centos7,centos under the general use of iftop, or nethogs for network traffic monitoring. All 2 tools need to install Epel first, bec

www.google.comNslookup www.google.comServer:127.0.1.1Address:127.0.1.1#53Non-authoritative Answer:Name:www.google.comaddress:78.16.49.15Dig www.baidu.commodifying kernel parameters Turn on route forwardingecho "1" >/proc/sys/net/ipv4/ip_forward Disable ICMP packets (ping-forbidden)echo "1" >/proc/sys/net/ipv4/icmp_echo_ignore_all Adjustment process can open the total amount of filesecho "108248" >/proc/sys/fs/file-max This article is from the Linux Learning Notes blog, so

In the network application, the network status of the user device needs to be monitored in real time for two purposes:(1) Let users know their network status, to prevent some misunderstandings (such as the application of incompetence)(2) According to the user's network status intelligent processing, save user traffic,

fixed number. I think the reason is that the network card is overloaded, so the computing error! I'm not sure. Do you have any experts understanding this problem !!! There are also many parameters that can be used. Examples in the help section: # nload-t 200-I 1024-o 128-U M to view the parameter HELP command: #/usr/local/nload/bin/nload -- help-a: The refresh time period of all data, in seconds. The default value is 300. -I: sets the maximum display

package resources, need to add. Enter the wireless card interface Wlan0mon in the intf, and other configurations can be ignored. After exiting the service, the log file is saved by default in the/root/directory, there are 5, can be viewed. The file format is as follows:>alert: This file includes all the warning messages.>gpsxml: If a GPS source is used, its associated GPS data is stored here.>nettxt: Includes all the collected file output information.>netxml: Includes all the XML format data.>p

With the mobile network upgrade: 2G->3G->4G even the development of 5G, the network speed is more and more fast, but this flow is like flowing water generally rushing away.Online is not a joke: sleep forgot to close the flow, the next day the house will be moved! This is an exaggeration to say, but as a good app developer, we need to give the most appropriate hints in the app. Give some hints when you nee

Compared with WINSOCK1, Winsock2 most obvious is to support the raw socket socket type, using raw socket, can set the network card into promiscuous mode, in this mode, we can receive IP packets on the network, of course, including the destination is not the local IP packet,Through the original socket, we can also more freely control the various protocols under Windows, and can control the

Introduction to the programme Small business offices are generally concentrated in commercial office buildings, and the traffic is large and complex. The use of monitoring network is particularly important for security prevention and management. And for corporate office, high-speed, stable, secure wireless network coverage is essential, intranet sharing, behav

The Linux Performance Network monitoring tool (IOSTAT/SAR/MPSTAT) needs to be installed Sysstat this package.Tool One, iftop (View network bandwidth, (must be installed from Epel source)1) The dependency packages required by Iftop are as follows:Flex BYACC libpcap ncurses ncurses-devel libpcap-devel2) The following is a description on Wikipedia:IftopMonitors to

username (Nagiosadmin) And password, which you just set, use the browser installed by default in the system, and use the hyperlink below Http: // localhost/nagios/Note: if the error "You don't have permission to access/nagios/on this server" is reported, You need to installPhpThe plug-in can solve the problem by running the command yum install php-y (yum must ensure that your linux system can be connected to the Internet and the yum can be used normally) Click "service details" to view the

(1) Network card Monitoring script#!/bin/bashEcho-n "Please enter the interface (ETH0) for the NIC you want to query:"Read ETHecho "The NIC interface you want to query is" $ethDeclare-i secEcho-n "Enter the time to wait (in seconds):"Read sececho "You want to see a single (b,k,m) of traffic:"Read typeIf ["$sec" = "0"]ThenSec=1Fiecho "You calculate the average flow in the $sec seconds"infirst=$ (awk '/' $eth

I. Installation IPTRAF: (Traf is a shorthand for traffic, meaning traffic, transportation)Run command: sudo apt-get install Iptraf Two. Iptraf use:Run command: IptrafThen press any key to continue650) this.width=650; "src=" http://img1.51cto.com/attachment/201203/134124722.jpg "border=" 0 "/>First item: IP traffic MonitoringSecond item: General view network card traffic status. View only the total traffic for each NICThe third item: Check