1 SPDY protocol 1.1 Overview
SPDY is the abbreviation of speedy, which is the pronunciation of speedy.
The SPDY protocol has published four drafts: Version 1, version 2, version 3, and Version 3.1. Version 4 is currently in the trial phase, but has not yet been released. There are some code for version 4 in Chromium.
Advantages of SPDY over HTTP:
Disadvantages:
Due to these disadvantages, SPDY is less effec
Big
Google is quic to see if it can combine the advantages of both protocols, while achieving low latency and high reliability and applying them to higher-security protocols.
This article is to introduce the QUIC protocol in detail.
Speaking from the TCP protocol
Currently, the data transmission of the Web platform is
Without Google optical fiber, you can use its QUIC protocol to increase network speed.
Google said that its self-developed QUIC network protocol can speed up Web browsing. Google is planning to propose suggestions to the IETF standard organization to make QUIC a next-genera
, 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 thi
is blue.
The window is similar, 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 c
Wireshark is a powerful open source Traffic and Protocol analysis tool, in addition to the traditional network protocol decoding, but also support a number of mainstream and standard industrial control protocol analysis and decoding.Serial numberProtocol typeSOURCE downloadBrief introduction1SiemensS7https:GITHUB.COM/
Turn from:Http://blog.chinaunix.net/uid-9112803-id-3212041.htmlSummary:In this paper, we briefly introduce the theory of TCP-oriented connection, describe the meanings of each field of TCP messages, and select TCP connections from Wireshark capture packet to establish the relevant message segment.I. OverviewTCP is a reliable connection-oriented transport protocol, two processes to send data before the need
Based on the previous security protocol analysis of the SSL protocol, first review the content of the SSL protocol and then use Wireshark to grasp the contents of the specific flow of packets.
The SSL protocol stack is located between the TCP and the application layer, and i
Today just applied for a virtual host, upload data to become a problem, Google, hehe, see the FLASHFXP This software, this is called What ghost Things, forgive the English rotten to the extreme, download installation, recently happened to the agreement analysis is very interested Ah, so, This is the Virgo article today, hehe, the individual always love to say some nonsense, well, if you think so, then let's get to the point.
Analysis of Wireshark gras
file, put in the device's SD directory, and then open the certificate file directly in the device, will prompt the installation information, of course, here in the old version of the system, may also need to set up the page to operate:In Settings, select Security, and then select Install Certificate from SD card to install it properly. After the installation is successful, you can view this certificate information:third, crawl the sample app packetIn this way, our device will have the Fiddler c
Turn from: Http://blog.chinaunix.net/uid-9112803-id-3212207.html Summary:This article analyzes the browser input URL to the entire page display of the entire process, to Baidu home, for example, combined with Wireshark capture group for detailed analysis of the entire process, so as to better understand the TCP/IP protocol stack.first, capture group1.1 Preparatory work(1) Clear browser cacheStart by emptyi
Wireshark packet capture analysis-network protocol
Wireshark is currently the most popular packet capture tool. It can run in windows, Linux, and Mac OS X operating systems, and provides a friendly graphical interface. Wireshark also provides a powerful data packet capture function. It can capture the network data pack
'370a @ GLIB_LIBS @ \ 'Makefile. am# CompileMake# Installation. To package it into deb, sudo checkinstall should be used hereSudo make install
To package the compiled program into deb for easy installation on other machines, you can install checkinstall first.Sudo apt-get install checkinstallThen, do not run the sudo make install command on the last line of the script, but like this:Sudo checkinstallEnter some package information as prompted to generate the deb installation package.
Finally, to
1. General analysisWhen Wireshark is started, all parsers are initialized and registered. The information to be registered includes the protocol name, the information for each field, the keyword to filter, the underlying protocol and port to associate with (handoff), and so on. In the parsing process, each parser is responsible for parsing its own
filteringThe use of filtering is very important, when beginners use Wireshark, will get a lot of redundant information, in thousands of or even tens of thousands of records, so that it is difficult to find the part of their own. Filters help us quickly find the information we need in a large amount of data.There are two types of filters:One is the display filter, which is the one on the main interface, which is used to find the required records in th
Abstract:
This article briefly introduces TCP connection-oriented theory, describes the meaning of each field of TCP packets in detail, and selects TCP connections from the wireshark capture group to establish relevant packet segments for analysis.
I. Overview
TCP is a reliable connection-oriented transmission protocol. Two processes need to establish a connection before sending data to each other. The con
Tags: blog HTTP Io use AR strong data SP Art
This article briefly introduces TCP connection-oriented theory, describes the meaning of each field of TCP packets in detail, and selects TCP connections from the wireshark capture group to establish relevant packet segments for analysis.I. Overview
TCP is a reliable connection-oriented transmission protocol. Two processes need to establish a connection before se
Wireshark Tools Create Filters the way the ARP Protocol comprehensive Combat Manual the instance 1-3 "Now to fetch the destination or source address as 192.168.5.9 of the packet. In Figure 1.5 , add the following criteria:
TCP DST Port 3128
Click After adding Start button to display the 1.6 The interface shown. This article is selected from the ARP Proto
Drcom_2011.lua is a plugin from an open source project on Google Code, thanks to the Internet God for sharingIf you need to use Drcom_2011.lua to analyze the drcom protocol, you need to put Drcom_2011.lua in the Wireshark installation directory (for example, C:\Program Files\wireshark),Then open the installation directory Init.lua (open with Advanced file Editor
interface eth1(3)-T: Time stamp not shown(4)-S 0: The default fetch length is 68 bytes when fetching packets. Plus-S 0 can catch complete packets(5)-C 100: Fetch only 100 packets(6) DST Port! 22: Packets that do not crawl the destination port are 22(7) SRC net 192.168.1.0/24: The source network address of the packet is 192.168.1.0/24(8)-W./target.cap: Save as a cap file for easy analysis with ethereal (i.e. Wireshark)Http://www.cnblogs.com/ggjucheng/
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