cpp handshake

First, the process of "three handshake" in the process of TPC connection establishment is briefly described:First: client sends connection request like server sideSecond time: After the server receives the request, it sends a response and connection request to the clientThird time: After the client receives a request to the server to send a reply650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M00/84/8A/wKiom1eTb3nAmFTHAAE4wfb_cAk708.png "title=

I am not a professional student of communication, just as a required course of computer science to learn the computer network, at first I still feel that this thing is not necessary to learn, because I graduate may engage in front-end aspects of the work, later found this course is actually quite fun. In addition to knowing a little more about the performance of the network, you can also understand the principles of many attacks, although I still do not attack. Just want to save a bit of charact

Core points of Knowledge:1. Three-time handshake: seq and ACK number2. Wave four times: fin and random numberOne, TCP/IP protocolThe TCP/IP protocol (Transmission Control protool/internet Protool) is called the Transmission Control/Internet Protocol, also known as the Network Communication protocol.This protocol is the foundation of Internet, the TCP/IP protocol is the basic protocol used in the network.Although the TCP/IP protocol (Transmission Contr

Why can't I shake hands twice: (prevents failed connection requests from being routed to server side, resulting in errors) Suppose you change to a two-time handshake, a connection request sent by the client is stranded on the server, the connection request is invalid, the client is already in the closed state, and the server thinks the client wants to build A new connection, the client is sent a confirmation segment, and the client side is the closed

1, TCP to establish a connection of three times handshake processThe TCP session is initialized by a three-time handshake. The goal of the three-time handshake is to synchronize the sending and receiving of data segments. It also indicates to other hosts the amount of data (window size) that it can receive at one time, and establishes a logical connection. The th

OpenVPN Optimization-Establishment of TLS handshake Control CHannel An optimization of the OpenVPN data tunnel is in progress. After referring to the concept and idea of the "giant frame", I carefully considered the design and implementation of the TCP/IP protocol stack, so I come up with a possible error, but at least it is very practical in my scenario: although the upper-layer protocol sends data, it doesn't matter the data size. If it really needs

TCP handshake/waving Process AnalysisIn TCP/IP, TCP provides reliable connection services and uses three handshakes to establish a connection.The server must be prepared to accept external connections. This is done by calling the socket, bind, and listen functions, called passive open ).The first handshake: the customer actively opens (active open) by calling connect ). This causes the customer TCP to send

Three-time handshake: establishing a TCP connection Connection Establishment Process:The TCP server process of B first creates the Transport control block TCB (which stores some important information in each connection, such as the TCP connection table, the pointer to the sending and receiving caches, the pointer to the retransmission queue, the current send and receive sequence numbers, and so on), ready to accept connection requests from the c

about TCP/IP three handshake protocol, This article has a detailed introduction , very easy to understand, when forgotten, can come over to look at the two eyes, to ensure that soon understand.First, the TCP/IP protocol is divided into three phases: establishing a connection (handshake phase), data transfer phase, and connection termination phase.See the previous study of the "Computer network" textbook,

Briefly describe some of the key words in WPA/WPA2 's 4-time handshake:WPA/WPA2 uses a 4-time handshake to generate the required key. The four-time handshake generates PTK (pairwise Transient key) from the PMK (pairwise Master key) through a series of interactions. The PMK is from MSK (Master Session Key), which is the first 256 bits of the MSK, 32 bytes.PTK contains 3 parts, KCK (Key confirmation key), KEK

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 to establish a connection, where the connection is only some of the cache and state variab

Because of the project needs, the HTTPS forced handshake has been studied, the sharing processing method is as follows:I. Problems and needsproblem: The Access Party may have HTTPS certificate authentication for the same domain name, and under the caching mechanism, the HTTPS handshake is reused by default in the SDK, or Nsurlprotocol is blocked for authentication.Requirements: based on the SDK side does no

the called function and then return the object. overloaded arithmetic operators fall into this category.To sum up, Chart Const Non-const Reference Higher efficiency, input arguments all const Overloading assignment Operator/overload Object To avoid certain misuse Return local objects, which is defined inside methods 12.5 Using pointers to ObjectsSample Code:Saying2.

I use rhel5.0, so install the following two packages: [Root @ localhost server] # Rpm-IVH libstdc ++ devel-4.1.1-52.el5.i386.rpm Warning: libstdc + +-devel-4.1.1-52.el5.i386.rpm: Header V3 DSA Signature: nokey, key ID 37017186Preparing... ######################################## ### [100%]1: libstdc ++-devel ################################### ####### [1, 100%][Root @ localhost server] # Rpm-IVH gcc-C ++-4.1.1-52. el5.i386. rpm Warning: gcc-C ++-4.1.1-52. el5.i386. RPM: Header V3 DSA Signature:

Introduce. H,. lib and DLL, And. cpp in the project. 1. Introduction of. h Solution 1: Copy XX. H to the project directory Solution 2: In more common cases, create an include directory elsewhere, set the project environment configuration, and point to the directory, as shown below: Configure project properties: C/C ++ General additional include directory Add:... \ .. \ include (If there are multiple projects, if the same. h file is referenced) Now, y

Macro for Visual Studio switching between CPP and header files (Alt + O) (See link: http://www.codeproject.com/KB/macros/SourceHeaderJumper.aspx) Introduction How many times C/C ++ programmer swaps between source and header files? Hundreds times per a day! Simple Macros in DTE essentially accelerates swapping action.Create new module, or use existing one, in my case "commonmacros". To convenience, It is necessary link up this macros to hot key, see

Frameworks/base/libmediaplayerservice/mediaplayerservice. cpp Because MX51 is the working platform, MX51 10.3 code is analyzed. This article mainly analyzes the code of the video play part and ignores the recorder and audio parts. Mediaplayer service is a system service that allows Android video playback, recording and recording, metadata retrieval, and other client applications to interact with mediaplayer service. mediaplayer service enables video p

:// stonewt1.h -- revised definition for the Stonewt class#ifndef STONEWT1_H_INCLUDED#define STONEWT1_H_INCLUDEDclass Stonewt{private: static const int Lbs_per_stn = 14; int stone; double pds_left; double pounds;public: Stonewt(double lbs); Stonewt(int stn, double lbs); Stonewt(); ~Stonewt(); void show_lbs() const; void show_stn() const; operator int() const; operator double() const;};#endif // STONEWT1_H_INCLUDED //Stonewt1.

Switching between. h and. cpp files in, I recently wrote a lot of C ++ programs. switching between header files and source files is really painful. There is a macro in vc6.0 to implement this switch, but I found this macro is not useful in vs2008. Like other excellent programmers, I decided to write a macro to implement this function. If you have not written this macro before, follow these steps:1. Select Tools | Macros IDE in vs and open the macro w

// Bolgcontent. cpp: defines the console application Program . // # Include "stdafx. H"# Include # Include // Function simulation // 1. function pointer and function reference// Example: # Include Void Foo (){STD: cout } Typedef void foot (); // foot is a function type Int _ tmain (INT argc, _ tchar * argv []){Foo (); // call directly STD: cout STD: cout Foot * pF = Foo; // implicit TransformationPF (); // indirect call via poi