Linux statistical analysis traffic-wireshark, statistical analysis-wireshark
Wireshark is an open-source packet capture tool with an interface. It can be used for statistical analysis of system traffic.Install
Wireshark has an interface, so it is generally run in the interface environment. You can install it through yu
binary data in the packet. These protocols are generally privately defined and are binary-based protocols, such as what the first few bytes mean, Wireshark must not recognize these packages, so we can filter on our own binary dataThe packet that filters out the IP source or destination address is 172.16.1.126 and the UDP port is 50798 and the value of the 2nd byte of the RTP packet is 0XE0, such that the package is a frame-end package for the RTP pac
The simplest example of Flash-based streaming media: webpage players (HTTP, RTMP, HLS), rtmphlsThis article continues with the previous article, recording some Flash-based streaming media processing examples. This article records some Web players based on Flash technology. Compared with other Web players, Flash-based Web players have the biggest advantage of "plug-in-free installation", which greatly improves the user experience quality. Earlier Netwo
reproduced in this document: Http://www.cnblogs.com/my_life/articles/5593892.html, thank the blogger enthusiastic dedication
The following content is reproduced:
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http://blog.csdn.net/zhangxinrun/article/details/50739237
In the live app, rtmp and HLS can basically cover all the clients watching,HLS mainly is the delay is relatively large, the
How to Use wireshark to view ssl content and wireshark to view ssl
1. To view the ssl content, you need to obtain the server rsa key of the server.
2. Open wireshark and find the following path: Edit-> Preferences-> protocols-> SSL
Then click RSA Keys List: Edit,
Create a New RSA key on the New RSA editing interface
Where
IP address is the IP address of the serve
, which is very helpful for reading protocol payload, such as HTTP, SMTP, and FTP.
Change to the hexadecimal dump mode to view the hexadecimal code of the load, as shown in:
Close the pop-up window. Wireshark only displays the selected TCP packet stream. Now we can easily identify three handshakes.
Note: Wireshark automatically creates a display filter for this TCP session. In this example: (IP. addr eq
Build nginx-rtmp server under Windows
Build nginx-rtmp server under Windows
Preparatory work
Installing MinGW
Installing mercurial
Installing Strawberryperl
Installing NASM
Download Nginx-related source code package
Compiling Nginx
NGINX-RTMP Environment Construction
Effe
indicates that the server message is blue.A window similar to the one shown here is useful for reading protocol payloads, such as HTTP,SMTP,FTP.Change to hex dump mode to view the hexadecimal code of the payload, as shown in:When the pop-up window is closed, Wireshark only displays the selected TCP message stream. It is now easy to distinguish 3 handshake signals.Note: Here Wireshark automatically creates
lua:error during loading: [string "/usr/share/wireshark/init.lua]: 46:dofile have been disabled due to running Wireshark as Superuser. See Http://wiki.wireshark.org/CaptureSetup/CapturePrivileges-running Wireshark as an unprivileged user.The way to solve it:1. Terminal input:sudo Vim/usr/share/wireshark/init.lua2. Find
Order: Up to Jul 8th,2013 official release of the latest Nginx RTMP module Nginx-rtmp-module instructions detailed.
Core rtmpSyntax: rtmp {...}Context: Root
Description: Saves blocks for all RTMP configurations.
ServerSyntax: server {...}Context: rtmpDescription: Declares an instance of RTMP.rtmp {server {}
}
ListenSyn
WireShark data packet analysis data encapsulation, wireshark data packetWireShark packet analysis data encapsulation
Data Encapsulation refers to the process of encapsulating a Protocol Data Unit (PDU) in a group of protocol headers and tails. In the OSI Layer-7 reference model, each layer is primarily responsible for communicating with the peer layer on other machines. This process is implemented in the Pr
I. Problem Description
Install ubuntu14.04 on the PC and log on as the root user.
When Wireshark is started, the following error dialog box appears:
Lua: error during loading: [String "/usr/share/Wireshark/init. Lua"]: 46: dofile has been disabled due to running Wireshark as superuser.
Ii. Solution
Modify/usr/share/W
RTMP HLS HTTP Live protocol one time to see enoughLive from 2016 to 2017 years of fire, now in their own app to join the live broadcast function, just find a ready-made SDK on the line, what shooting, beauty, push flow, one-stop service. But as the most important part of the live stream: The push-flow protocol, many people are not very clear. If you're interested in live streaming and want to learn about the various mechanisms behind it, you can start
Select capture by applying packet-capture filtering | Options, expand the window to view the Capture Filter Bar. Double-click the selected interface, as shown, to eject the Edit Interface settints window.The Edit Interface Settings window is displayed, where you can set the packet capture filter condition. If you know the syntax for catching packet filters, enter it directly in the capture filter area. When an error is entered, the Wireshark indicates
Great ~~
BasicIo graphs:
Io graphs is a very useful tool. The basic Wireshark Io graph displays the overall traffic in the packet capture file, usually in the unit of per second (number of packets or bytes ). By default, the x-axis interval is 1 second, And the y-axis is the number of packets at each time interval. To view the number of bits or bytes per second, click "unit" and select the desired content from the "Y axis" drop-down list. This is a ba
One: Filter
Using the Wireshark tool to grab a package, if you use the default configuration, you get a lot of data, so it's hard to find the packet data we're analyzing. So using Wireshark filters is especially important.
Wireshark filters are divided into two types: Display filter, capture filter
If the filtered syntax is correct, the green is disp
Wireshark related tips, wireshark relatedThe Packet size limited during capture prompt indicates that the marked packages are not fully captured. In some operating systems, only 96 bytes are captured by default, the "-s" parameter in tcpdump can be used to specify the number of bytes to be captured. "-s 1500" means that each packet can capture 1500 bytes, '-s 0' indicates the number of TCP Previous segment
I. rtmp Headers
For details about rtmp protocol packets, refer to red5.
The rtmp Protocol packet consists of a packet header and a packet body. The packet header can be of any of the four lengths: 12, 8, 4, 1 byte (s ). the complete rtmp header should be 12 bytes, containing the timestamp, head_type, amfsize, amftype,
Wireshark cannot capture wireless network card data Solution
The capture session cocould not be initiated (failed to set hardware filter to promiscuous mode) always appears ).
Solution: wireshark-> capture-> interfaces-> options on your atheros-> capture packets in promiscuous mode-set it off.
The capture session cocould not be initiated (failed to set hardware filter to promiscuous mode) always appears
Basic IO Graphs:IO graphs is a very useful tool. The basic Wireshark IO graph shows the overall traffic situation in the capture file, usually in units per second (number of messages or bytes). The default x-axis time interval is 1 seconds, and the y-axis is the number of messages per time interval. If you want to see the number of bits per second or byte, click "Unit" and select what you want to see in the "Y Axis" drop-down list. This is a basic app
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