In China, there is a saying – “Since you are here, you might as well enjoy it!”Seeing beautiful scenery on TV, with green mountains and clear waters, and cascading waterfalls, one might impulsively drive to the destination. Upon arrival, they realize that it was the camera that was beautiful, not the scenery. But since they … Read more
Abstract: It is a command-line utility used to list information about files opened by various processes. In Linux, everything is a file (pipes, sockets, directories, devices, etc.). Therefore, by using lsof, you can obtain information about any open file. lsof stands for ‘list open files’. If you think of the lsof command as ‘ls + … Read more
Linux founder Linus Torvalds criticized the hardware of AMD, Intel, and NVIDIA for having “flaws” and expressed skepticism about the hype surrounding the artificial intelligence industry, stating that “90% is marketing, 10% is reality.” He believes that AI will eventually change the world, but currently chooses to ignore it because the industry focuses on marketing … Read more
The Future of Rust Code in the Linux Kernel: Progress Amid Controversy Introduction Since the first integration of Rust code into the Linux kernel in 2022, the controversy surrounding its introduction has never ceased. The Rust language is praised for its excellent memory safety features and is seen by many governments and security experts as … Read more
In today’s rapidly accelerating digital transformation, the Linux operating system, as the mainstream OS for servers and edge computing devices, directly impacts the protection of enterprise data assets and user privacy. This guide will present a practical security hardening solution from the core dimensions of security reinforcement, combined with code examples, focusing on two key … Read more
Introduction: Why Can Your Computer Run? When you write code on Ubuntu, browse the web on Fedora, or come across news about the “HarmonyOS computer coming soon” on your phone, have you ever wondered how these systems actually work behind the scenes? The key to the answer lies in the relationship between the Linux kernel … Read more
Click the blue “Most Programmer” to follow me! Add a “star“, every day at 18:03 to learn technology together Redirection Standard input stdin: code is 0, use < or <<Standard output stdout: code is 1, use > or >>Standard error output stderr: code is 2, use 2> or 2>>Special syntax: write both stdout and stderr … Read more
Open-source tools like Linux Malware Detect and Chkrootkit can alert you to unwanted visitors on your server. Translated from “Linux Security: Scan Your Servers for Rootkits With Ease” by Jack Wallen. Linux is one of the most secure operating systems on the planet. However, nothing is absolutely secure, and if a server is connected to … Read more
As a Linux operations engineer, mastering command delimiters is a key skill to enhance work efficiency. This article will detail commonly used command delimiters in the CentOS7 system and their usage techniques, helping you operate the command line with ease. 01 Basic Delimiters Semicolon (;) and Logical AND (&&) 1. Semicolon (;) – Execute sequentially … Read more
In Linux systems, there are various commands and methods to view the status of remote login users. Here are some commonly used commands and techniques: 1. Using the who command The who command is used to display information about users currently logged into the system, including usernames, login times, and login terminals. It can also … Read more