java udp

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

Label: HTTP Io ar OS using Java SP data Div Remember the fiddler and Charles debugger I recommended a long time ago? They are both powerful and powerful tools for debugging HTTP. Good tools help you get twice the result with half the effort. Basically, I am a complete tool control. One day, if you are tired of writing "traditional" PHP and want to play socket, engage in emerging languages or frameworks such as Python, nodejs, And go (I'm not saying

For UDP protocol, it is different from TCP protocol in the transport layer, and its length is very suitable for the sharding policy. All of these content will be clearly explained in the article. So let's take a look at the specific content, hoping to provide you with a useful reference. 1. Brief Introduction to UDP UDP is a transport layer protocol, which is in

TCP-IP learning notes of UDP (User Datagram Protocol) I. Introduction UDP is a simple datagram-oriented transport layer protocol: Each output operation of the process generates a UDP datagram, and assembled into an IP datagram to be sent. This is different from the stream-oriented character protocol, such as TCP. The full data generated by the application may be

1.UDP Brief IntroductionUDP is a transport layer protocol, and the TCP protocol is in a hierarchy, but unlike the TCP protocol, the UDP protocol does not provide time-out retransmission, error retransmission and other functions, that is, it is unreliable protocol.UDP Datagram Structure:UDP header Format:Explain: Source port number: The item is any option, the default value is 0, which can be

This is a creation in Article, where the information may have evolved or changed. In the previous article Go Socket programming Practice: TCP Server and client implementation, we implemented an echo server, and also implemented a client to access the server.This article explains how to implement a UDP server and client.The protocol we're using this time is RFC 868,This protocol provides a site-independent, machine-readable date and time information. T

destination process) is done by TCP.7, the transport layer of the main protocolThe two main protocols of the TCP/IP transport layer are important standards for the Internet, TCP (Transmission Control Protocol) [RFC 768], User Datagram Protocol UDP (subscriber Datagram Protocol) [RFC 793].The data flow of the transport layer is to establish a logical connection between the network endpoints. If you use UDP,

bytes.Calculation principle of 1.3 UDP checksumThe UDP checksum is basically consistent with the TCP checksum.UDP checksum needs to divide the IP pseudo header, UDP header, UDP data into 16-bit words, and then accumulate (if the total length is an odd number of bytes, then add a bit to 0 bytes at the end), and finally

Socket programming practices in Linux (10) Basic UDP programming detailsIn my two blogs, I briefly introduced and implemented the server and client programs under UDP (TCP)-based windows (basically consistent procedures in UNIX, this article continues to explore some details about UDP programming.Is a simple UDP client

During UDP programming, the most common question is how many bytes are sent at a time? Of course, there is no unique answer. The answer is different from the requirements of different systems. Here we only analyze the situation of sending chat messages like ICQ, in other cases, you may be able to get some help: First, we know that TCP/IP is generally considered as a layer-4 protocol system, including the link layer, network layer, transport layer, an

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

With the key idea of IP over SSL, openvpn is an inevitable result, so I will not talk much about it. openvpn and OpenSSL are not at the same level, although they are both open. The openvpn configuration is very complex, mainly to establish a more reasonable tunnel, although the VPN implemented by IPSec does not distinguish between the client and the server, the establishment of SA relies on DH symmetric negotiation encryption key and Algorithm But openvpn Based on OpenSSL is differentiated betwe

Vpn Principle and Implementation-tcp or udp vpnssltcp decryption network server has the key idea of ip over ssl. openvpn is an inevitable result, so I will not talk about it much, openvpn and openssl are not at the same level, although they are both open. The openvpn configuration is very complex, mainly to establish a more reasonable tunnel. Although the vpn implemented by ipsec does not distinguish between the client and the server, the establishmen

Tag: Send protocol data in UDP formatBasic introduction to UDP Protocol 1. Basic conceptsUDP is a simple packet-oriented Transport layer protocol: each output of the process produces exactly one UDP datagram and is assembled into an IP datagram to be sent, unlike the stream character protocol, such as TCP, where the entire data generated by the application is not