In daily life, when shopping online or mailing an item, one must fill out both parties’ addresses, contact information, and whether insurance is needed, among other details. Additionally, the courier company may have other regulations that need to be included in the purchase and mailing details. The purpose of these actions is to ensure the … Read more
Source: https://juejin.im/post/6844903490595061767 Author: Ruheng 1. TCP/IP Model The TCP/IP protocol model (Transmission Control Protocol/Internet Protocol) includes a series of network protocols that form the foundation of the Internet and is the core protocol of the Internet. The reference model based on TCP/IP divides the protocols into four layers: Link Layer, Network Layer, Transport Layer, and … Read more
This article is reprinted from WeChat public account: Linwan Village Chinchilla 1. Introduction TCP is a connection-oriented protocol. Before either party sends data in any direction, a connection must be established between the two parties. The state transition diagram for connection creation and termination is as follows: 2. Three-Way Handshake to Establish Connection The process … Read more
Click the “Learn Algorithms in Five Minutes” above and choose the “Star” public account Heavy content delivered first Source: Juejin, Author: Ruheng Link: https://juejin.im/post/6844903490595061767 1. TCP/IP Model The TCP/IP protocol model (Transmission Control Protocol/Internet Protocol) includes a series of network protocols that form the foundation of the Internet and is the core protocol of the … Read more
High-definition image, sourced from the internet. Suggestions: 1) View on PC 2) If viewing on mobile, please click the image to zoom Application Layer, Presentation Layer, Session Layer: HTTP, FTP, SMTP, POP3, encryption and decryption, compression and decompression, session management Transport Layer: TCP, UDP, ensuring data segments arrive effectively Network Layer: IP, ICMP, RIP, packet … Read more
The italic part is a question from the reader After reading Richard Stevens’ TCP/IP Protocol Volume 1: Detailed Explanation for a long time, I feel that it is quite difficult to read. How should I learn what the TCP/IP protocol is really about? What can I do after understanding the TCP/IP protocol? I would appreciate … Read more
Brief Introduction to UDP UDP is a transport layer protocol, sitting in the same layer as the TCP protocol. However, unlike TCP, UDP does not provide features such as timeout retransmission or error retransmission, meaning it is an unreliable protocol. UDP Protocol Header UDP Port Number Many applications require the use of UDP, so it … Read more
From: Juejin, Author: Ruheng Link: https://juejin.im/post/6844903490595061767 1. TCP/IP Model The TCP/IP protocol model (Transmission Control Protocol/Internet Protocol) consists of a series of network protocols that form the foundation of the Internet and are the core protocols of the Internet. The reference model based on TCP/IP divides protocols into four layers: Link Layer, Network Layer, Transport … Read more
1. Introduction As application layer developers, the network protocol we most often encounter is typically the transport layer’s TCP (another important protocol at this layer is UDP). However, when it comes to the IP protocol, application programmers are more familiar with the concept of an IP address, and it becomes difficult to delve deeper. This … Read more
Light Topic CC teacher shares the cornerstone coding + graphics technology explanation for live development. Tonight is the last day to sign in, don’t waste your efforts! If you complete the sign-in tonight, you can receive the full set of iOS skill expansion videos after class. Tonight at 8:30, a detailed explanation of the above … Read more