linux trace network traffic

Under Windows we can use the ipconfig command to obtain information about the network card, under Linux command is ifconfig We can obtain more information, including the network card to receive and send traffic, in the C language to achieve this command is not a simple matter, thus, the blogger through the access to r

based on the data link layer and network listening mode. 　　 When a dedicated network is used to listen to a host, the host is in Promiscuous mode and the streaming data packets are monitored and billed. the host to listen to must be in the same broadcast segment as the router. Because high-speed Ethernet listeners cause serious packet loss, this method is not widely used. 　　 2. SNMP-based billing. 　　 Confi

Network Traffic Statistics utility nicstat Nicstat InstallationNicstat installation:# Wget-c http://nchc.dl.sourceforge.net/project/nicstat/nicstat-1.92.tar.gz# tar zxvf nicstat-1.92.tar.gz # cd nicstat-1.92 # cp Makefile. linux Makefile # uname-mx86_64 # diff Makefile. linux # if it is not a 64-bit machine, you do n

There are previously written, but some do not have components can not install, here write down the installation components of the Install the required components Yum List | grep LIBP Yum Install libp* wget ftp://ftp.lmd.ens.fr/pub/devil/devel/sources/1.2/libpcap-0.9.8.tar.gz Install Iftop wget http://www.ex-parrot.com/~pdw/iftop/download/iftop-0.17.tar.gz Tar zxvf iftop-0.17.tar.gz CD iftop-0.17 ./configure Make Make install Use commands when you are finished installing Iftop-i eth0

How to crawl HTTP traffic packets under Linux (Httpry)September 5, 2014 North For some reason you need to sniff HTTP web traffic (that is, HTTP requests and responses). For example, you might test the performance of a Web server, or X-Uy debug a Web application or restful service, or try to resolve a PAC (Proxy auto-configuration) problem, or check for any malici

Linux traffic control, and gives several representative examples.First, related conceptsIt can be seen that packet packets from the input network card (portal) received in, through the search to determine whether it is sent to the local, or need to be forwarded. If it is sent to the local, it is directly up to the upper layer of the Protocol, such as TCP, if it

network card, cannot limit the packets received by the network card, so we can change the sending order to control the transmission rate. Linux traffic control is mainly processed and implemented when the output interface is arranged.Second, TC rules1. Flow control modeFlow control includes the following methods:SHAPI

Overview: The network Silver payment interface and Alipay interface is roughly the same, the main difference is that the bank of communications to provide the core of the interface, such as encryption, such as through the Java implementation. So, to find a way to make PHP and Java normal communication, for this. The authorities also provide two implementations, one for communication via sockets and the other for Java bridging. The socket method is sho

New book Unix/Linux Log Analysis and traffic monitoring is coming soon The new book "Unix/Linux Log Analysis and traffic monitoring" is about to release the 0.75 million-word book created in three years. It has been approved by the publishing house today and will be published soon. This book provides a comprehensive an

For Linux, we often need to check the traffic of Linux traffic monitoring. Linux traffic monitoring is still quite common. So I studied some methods of Linux

The Linux traffic monitoring software iptraf IPTraf can be used to monitor the load of an IP network. IPTraf uses the built-in Linux kernel... is a tool for monitoring network link traffic load. It uses snmp protocol to obtain the

In LINUX, implement the traffic controller-Linux Enterprise Application-Linux server application information. The following is a detailed description. Linux supports QOS from kernel 2.1.105. However, you need to recompile the kernel. When running make config, set EXPERIMENTA

Linux kernel has implemented the traffic control function since. This document introduces the concept of traffic control in Linux, describes how to use the Linux traffic control tool TC, and provides several representative exampl

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 similar to top... in Unix-like systems, you can use top to view syste

For some reason you need to sniff HTTP web traffic (that is, HTTP requests and responses). For example, you might test the performance of a Web server, or X-Uy debug a Web application or restful service, or try to resolve a PAC (Proxy auto-configuration) problem, or check for any malicious files downloaded from a Web site. Whatever the reason, sniffing HTTP traffic is very helpful for system administrators,

Article title: basic implementation and usage of Linux Traffic control. 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. Generally, the internal

As we all know, at the beginning of the birth of the Internet are all universities and scientific research institutions communicate with each other, and there is no network traffic control considerations and design, the principle of IP protocol is as good as possible for all data flow services, different data flow is equal. However, years of practice have shown that this principle is not ideal, and some dat

can be seen that the packet group is received from the input NIC (entry) and searched through the route to determine whether the packet is sent to the local machine or needs to be forwarded. If it is sent to the local machine, it is directly submitted to the upper-layer protocol, such as TCP. If it is forwarded, it will be issued from the output NIC (exit. Network Traffic Control usually occurs at the outp

In Linux, there are many ways to view Nic traffic. Next we will record several methods for viewing Linux Nic traffic and their respective features. It is displayed in text and text format. Let's take a look at the detailed introduction, which is required in the future.I. iptraf is a good tool for viewing

Linux View network card Traffic tool has Iptraf, iftop and Nethogs, etc., iftop can be used to monitor the network card real-time traffic (can specify network segment), reverse resolution IP, display port information.The command t