Multithreaded Programming in C: Using the pthread Library In modern software development, multithreaded programming is an important method for handling concurrent tasks. Although C is a low-level language, it provides powerful tools for implementing multithreading, the most commonly used being the <span>pthread</span> (POSIX Threads) library. This article will detail how to use the <span>pthread</span> library … Read more
In the season of deepening autumn, nature gifts us a fruit that is both delicious and nutritious. It is hailed as the ‘fruit of the gods’, not only for its unique taste but also for its medicinal value in traditional Chinese medicine. This fruit is the kiwi. The name ‘kiwi’ itself embodies magic and uniqueness; … Read more
Common Patterns Insulin CPep Clinical Significance ↑↑ ↑↑ Insulinoma, insulin resistance (early stage of type 2 diabetes) ↑↑ ↓↓ Exogenous insulin use (artificial hypoglycemia) ↓↓ ↓↓ Type 1 diabetes, late stage type 2 diabetes Normal ↑↑ Insulin resistance (compensatory secretion increase) Assessment of Insulin Resistance Normal value: <2.5; >2.9 indicates insulin resistance. Interfering Factors and … Read more
The following article is a summary of common knowledge in Shell programming, covering syntax and techniques. 1. Basic Concepts of Shell 1. Introduction The Shell is a command-line interpreter, an interface for users to interact with the kernel, receiving user-input commands and invoking system functions for execution. The Shell is loaded into memory when logging … Read more
As global energy consumption in data centers continues to rise, finding ways to reduce energy consumption while meeting the increasing demand for computing power has become an urgent issue. Recently, researchers from the University of Waterloo in Canada proposed an innovative solution: by modifying approximately 30 lines of code in the Linux kernel’s network stack, … Read more
Introduction A concerning new type of supply chain attack has emerged, targeting Linux developers working with the Telegram bot ecosystem. Discovered in early 2025, multiple malicious npm packages disguised themselves as legitimate Telegram bot libraries to provide SSH backdoors and steal sensitive data from unsuspecting developers. These domain-squatted packages accumulated approximately 300 downloads over several … Read more
1. The “Genetic Code” of File Permissions 1. File Type Identifiers First Character File Type Typical Examples d Directory /home, /var/log – Regular File index.html, app.py l Symbolic Link /usr/bin/python3 → python3.9 b/c Block Device/Character Device File /dev/sda (disk), /dev/ttyS0 (serial port) 2. Structure of Permission Triplets The permissions for each user type are composed … Read more
A critical vulnerability exists in the USB audio driver of the Linux kernel that may lead to out-of-bounds memory reads. This vulnerability has been patched by Takashi Iwai from SUSE. If an attacker gains physical access to the system, they can exploit malicious USB devices to achieve privilege escalation, tamper with system memory, or execute … Read more
Monitoring and Tuning the Linux Networking Stack: Receiving Data In Brief This blog post explains how computers running the Linux kernel receive packets and how to monitor and tune various components of the networking stack as packets flow from the network to user-space programs. Update: We have published a corresponding article: “Monitoring and Tuning the … Read more
First, install Wine.After the installation is complete, use the Wine command.Second, navigate to the folder where the EXE file is stored.Enter the command: wine xxx.exe Then the installation is complete, and the application will be available in the applications menu.