Linux eBPF – The JavaScript of the Linux Kernel

Linux kernel programming is a skill that most developers have either never encountered or are intimidated by. Just thinking about it can be daunting; what if the kernel crashes? The eBPF technology alleviates concerns about kernel programming, providing an impulse to give it a try. eBPF (extended Berkeley Packet Filter) is a revolutionary technology in … Read more

C++17 and Qt6 Network Programming: Building a High-Performance Server Architecture from TCP Protocol to SQLite3

C++17 and Qt6 Network Programming: Building a High-Performance Server Architecture from TCP Protocol to SQLite3

Welcome to the 【Ultimate Programming】 WeChat public account 【Knowledge Repository】, specially customized for everyone《Qt C++ Architect》 Series – Project Practice Episode 138:This issue will focus on a practical and challenging technical topic –【C++17 and Qt6 Network Programming: Building a High-Performance Server Architecture from TCP Protocol to SQLite3】.Whether you are a beginner who has just mastered … Read more

CO: An Efficient and User-Friendly C++ Foundation Library

CO: An Efficient and User-Friendly C++ Foundation Library

CO: An Efficient and User-Friendly C++ Foundation Library In the field of C++ development, CO (coost) is a highly regarded cross-platform foundation library. It focuses on performance and ease of use, aiming to make C++ programming simpler, easier, and more efficient. The CO library is feature-rich, covering multiple aspects from command line parsing to network … Read more

Introduction to Python: Network Programming

Introduction to Python: Network Programming

Python provides two levels of network services: low-level Socket and high-level SocketServer. These services assist developers in network communication and simplify server-side development. What is a Socket? Socket is an endpoint for communication between applications, primarily used for data exchange over a network. It is an interface provided by the operating system that allows applications … Read more

TCP Client Data Sending Code in C Language with Detailed Comments

TCP Client Data Sending Code in C Language with Detailed Comments

🎯 Core Functionality Send a string of data to a specified IP and port using the TCP protocol, including a timestamp and CRC check. 1. TCP Client Communication Establish a TCP connection with the specified server Continuously send structured data packets Support automatic reconnection mechanism Regularly send heartbeat packets to keep the connection alive 2. … Read more

Complete Guide to Building an HTTP Proxy Server in C# in 10 Minutes: From Theory to Practice

Complete Guide to Building an HTTP Proxy Server in C# in 10 Minutes: From Theory to Practice

Have you encountered such development pain points: the internal network environment cannot access external APIs and needs to be debugged through a proxy? Or do you need to monitor the HTTP request traffic of team applications? Recently, many developers in the .NET technology group have been discussing a common question: “How to quickly implement a … Read more

Understanding the Linux Loopback Interface

Understanding the Linux Loopback Interface

The network loopback interface (<span><span>lo</span></span>) 1. What is it? <span>lo</span> is a virtual network interface that is automatically created and managed by the operating system kernel. Its IP address is always <span>127.0.0.1</span> (IPv4) and <span>::1</span> (IPv6), which is known as the loopback address localhost. Any IP packets sent to this address range will be directly … Read more

TCP/IP Protocol Basics: TCP and UDP Explained

TCP/IP Protocol Basics: TCP and UDP Explained

Click the image | Get the latest information in the network engineering industry Network programming has three elements: IP address, port number, and communication protocol. This time we will mainly discuss the TCP and UDP communication protocols and their implementation in programming. IP AddressComputers in the network use IP addresses for unique identification. There are … Read more

Building a Minimal C++ HTTP Server from Scratch: Core Principles and Implementation

Building a Minimal C++ HTTP Server from Scratch: Core Principles and Implementation

Recently, while assisting a friend with a small tool project, I encountered a requirement: to embed a local HTTP service so that the frontend can access and control the backend logic. It sounds simple, but if we want to implement a minimal HTTP server from scratch using standard C++ network programming without relying on existing … Read more

What Knowledge Should Be Mastered in Embedded Software Development?

What Knowledge Should Be Mastered in Embedded Software Development?

1. What is Embedded Software? Embedded software typically refers to the software that runs on embedded systems. An embedded system is a special type of computer system, usually used for tasks such as control, monitoring, and data processing. Embedded systems generally consist of two parts: hardware and software, where embedded software refers to the programs … Read more