nginx four-layer tcp load balancing and active and standby, four-layer udp load balancing and active and standby, 7-layer http load balancing and active and standby configuration (wndows system active and standby, load balancing)

Preparation Prepare two centos7 computers, virtual machines can also be used Use vmware17 to build centos7 mini version server on windows-CSDN Blog Set up a static IP address (because the network load balancing manager on the Windows server does not support dhcp servers) Modify the network card IP address in ky10, centos7 and other linux […]

TCP and UDP C# code practice

Seven-layer structure of network transmission: Among them, TCP and UDP protocols are at the transport layer. TCP/IP protocol TCP/IP contains multiple protocols in the four-layer architecture, two of which are named: TCP Characteristics of TCP Handling of sticky bag problems TCP receiving too much data at one time will inevitably cause sticky packets, that is, […]

java network programming, udp, tcp

1. Three elements of network programming 1.IP address The address of a device on the network is its unique identifier. 2.Port The unique identifier of the application on the device. 3. Agreement The rules for data transmission in the network. Common protocols include UDP protocol and TCP protocol. 2.IP IP: The full name is “Internet […]

03.UDP sockets and raw sockets

UDP socket Note that in UDP sockets, recvfrom and sendto are used API: recvfrom: Receive packets and store source address (UDP) Function prototype: int WSAAPI recvfrom( [in] SOCKET s, [out] char *buf, [in] int len, [in] int flags, [out] sockaddr *from, [in, out, optional] int *fromlen ); parameter: s: descriptor identifying the bound socket buf: […]

[Network Programming] How to make the UDP protocol more reliable

(? ), Hello, I am Youyan QAQ My blog homepage: C/C++ language, data structure, Linux basics, ARM development board, network programming and other fields UP Come on, learn together, and let us become a powerful siege lion! A piece of chicken soup for myself and my readers: Concentrated will can break through stubborn rocks! The […]

7. W5100S/W5500+RP2040 Raspberry Pi Pico<UDP Multicast>

Article directory 1 Introduction 2. Related introduction 2.1 Brief description 2.2 Advantages 2.3 Application 3. WIZnet Ethernet chip 4. UDP multicast loopback test 4.1 Program flow chart 4.2 Test preparation 4.3 Connection method 4.4 Related code 4.5 Test phenomena 5. Precautions 6. Related links 1. Preface UDP multicast is a communication method based on the […]

[Unity Network Communication] Teach you how to use TCP and UDP protocols in one step

An article about Unity acting as both client and server Communication protocol TCP, UDP There are many repeated methods on the server side. Interested friends can write them as base classes to reduce the repetition rate. 1. Preface Achieve sending specified commands through TCP or UDP protocol, and the receiving end performs operations related to […]

STM32U575ZIT6Q+W5300 implements UDP network communication

while (1) { if(HAL_GPIO_ReadPin(W5300_LINK_GPIO_Port, L_LINK)==1) // LINK–LED is high level { for(i=0;i<8;i + + ) { close(i); } } else { W5300_UDP_Loopback(0,1000,Dip,1000, S_Buffer); //socket number, local port, destination IP, destination port, transceiver buffer } } 1. Hardware configuration 1.1 Hardware connection between stm32 and W5300 I chose a 16-bit data width, so the address line […]

UDP protocol two-way communication

//Server #include <stdio.h> #include <string.h> #include <unistd.h> #include <sys/types.h> /* See NOTES */ #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #include <pthread.h> #include <stdlib.h> #define DEST_IP “” // ubuntu #define DEST_PORT 60000 #define DEST_IP1 “” // ubuntu #define DEST_PORT1 60001 struct coll_package { struct sockaddr_in client_addr; //Storage client’s address and port struct sockaddr_in dest_addr; socklen_t address_len; […]