udp flood

DNS uses the TCP protocol or UDP protocol. It is recognized that DNS uses both UDP and TCP port 53, this single application protocol uses two transmission protocols at the same time in the TCP/IP stack is also an alternative. However, few people know under what circumstances DNS uses the two Protocols. First, we will briefly introduce TCP and UDP. TCP is a connec

Software download for analysis: Wireshark-win32-1.10.2.exeRead the guided Tour1. Analysis of application TCP protocol, and TCP link management2. Analyzing Application UDP protocolAnalysis requirements(1) TCP section: Learn the configuration and use of 3CDaemon FTP server Design applications to obtain TCP messages Analyze the format and content of TCP messages (analyze at least 5 messages and understand the relationship between them)

Protocols that can be used in Java communication include TCP protocol and UDP protocolUDP Protocol ConceptsThe full name of the UDP protocol is the User Datagram Protocol, which is used in the network as the TCP protocol for processing packets, but it is a non-connected protocol. In the OSI model, the fourth layer, the transport layer, is in the upper layer of the IP protocol.

Real-time audio and video domain UDP is the king In the Internet, audio and video real-time interaction using the Transport Layer Scheme has TCP (such as: RTMP) and UDP (such as: RTP) two kinds. The TCP protocol can provide a relatively reliable guarantee for data transmission between two endpoints, which is achieved through a handshake mechanism. When the data is passed to the receiver, the receiver checks

This article describes the UdpClient class as a simple way to send and receive non-connected UDP packets in synchronous blocking mode. Because UDP is a non-connected transport protocol, you do not need to establish any remote host connections before sending and receiving data. You only need to establish the default remote host option in the following way: Use the remote host name and port number as paramete

TCP/Socket learning-UDP segment format 16-bit source port number 16-bit destination port number 16-bit UDP Length 16-bit UDP test and the above eight bytes of data (if any) Case Analysis: next we will analyze a UDP-based TFTP protocol frame. Ethernet header 0000: 00 05 5d 67 d0 b1 00 05 5d 61 58 a8 08 00 IP header 0000

http://1024monkeys.wordpress.com/2014/04/01/game-servers-udp-vs-tcp/When writing online games, the question of whether to use UDP or TCP will have to be faced sooner or later.In general, you will hear people say, "Unless you're writing an action game, you're going to use TCP," or "You can use TCP in MMO games, because World of Warcraft tcp! ”Unfortunately, these views do not reflect the complexity of the pr

1. Overview Some common applications written using UDP include DNS (Domain Name System), NFS (Network File System), and SNMP (Simple Network Management Protocol) Provides typical function calls for UDP client/server programs: 2. recvfrom and sendto Functions Two functions are similar to the standard read and write Functions, but three additional parameters are required. # Include The first three parame

After the standard UDP client has opened a set of interfaces, it generally uses the sendto and recvfrom functions to send data. Recently, we can see that the ntpclient Code uses the direct method of the send function, so we have analyzed it, in the past, UDP sent data in two ways for you to choose from, by the way, UDP connect usage will be clearly explained.Meth

=====================================================Audio-visual data Processing Primer series articles:Getting started with visual audio data processing: RGB, YUV pixel data processingGetting Started with AV data processing: PCM Audio sampling data processingGetting Started with AV data processing: Analysis of video stream in H.Getting Started with AV data processing: AAC audio bitstream parsingGetting Started with AV data processing: FLV Encapsulation Format parsingGetting Started with AV dat

Java Support for UDPThe UDP protocol provides a service that differs from the TCP protocol's end-to-end service, which is non-connected and is unreliable, and UDP sockets do not need to be connected before they are used. In fact, the UDP protocol only implements two functions: The port is added on the basis of IP protocol; Detects data errors that ma

UDP belongs to the transport layer together with the TCP mentioned earlier. UDP differs from TCP in that it is a non-connection-oriented protocol, that is, when both parties communicate with each other, they do not need to establish a connection beforehand. So the UDP header saves a lot of fields, and the UDP header i

2017-02-09 top-down: Transport Layer overview, Transport layer and network layer relationships, multiplexing and multiplexing, UDP introduction Logical communication (logic communication), transport beginning (segment), Best effort delivery service (Best-effort delivery service), unreliable services (unreliable service), Multiplexing (Transport-layer multiplexing), multi-channel decomposition (demultiplexing), data transfer (reliable data transfer), c

Difference Between TCP and UDP TCP The TCP/IP protocol is a protocol cluster. It includes many protocols. UDP is only one of them. The reason for naming is TCP/IP, because TCP and ipprotocol are two important protocols, they are used for naming. The TCP and UDP protocols belong to the transport layer protocol, while the IP protocol belongs to the network layer pr

After the standard UDP client has opened a set of interfaces, it generally uses the sendto and recvfrom functions to send data. Recently, we can see that the ntpclient Code uses the direct method of the send function, so we have analyzed it, in the past, UDP sent data in two ways for you to choose from, by the way, UDP connect usage will be clearly explained. Met

PurposeProvides data forwarding for access from a tcp client to a UDP server. Sometimes our server provides UDP packet format, but for various reasons,Our client can only be accessed through TCP. This article provides data forwarding from TCP to UDP. After receiving tcp client connection requestsData is forwarded to the UDP