Script HomeSet as “Starred⭐” to receive article updates promptlySource: Haodao Linux (ID: hao_tiyu)Today, I bring you 45 efficient Linux command combinations. By utilizing these commands effectively, you will find that they can solve 99% of daily operational tasks.The following related efficient commands are listed without any particular order, focusing more on providing a better user … Read more
Compiled by: Code Guardian A significant security gap in Linux runtime security caused by ‘io_uring’ can allow rootkits to operate undetected on systems while bypassing advanced enterprise security software. This vulnerability was discovered by security researchers at ARMO, who also developed a proof-of-concept rootkit named ‘Curing’ to demonstrate the practicality and feasibility of evading detection … Read more
1. Overview of Shared Memory Technology Shared Memory is one of the fastest inter-process communication (IPC) methods in Linux systems, allowing multiple processes to access the same physical memory area, thus avoiding the performance overhead of data copying between processes. Compared to other IPC mechanisms such as pipes and message queues, shared memory has the … Read more
Through action, knowledge deepens; through deep knowledge, action becomes more effective. To stimulate students’ interest and enthusiasm for studying information technology, and to help everyone understand more practical computer knowledge, the School of Information Technology has specially launched the “IT Knowledge Base” column. Continuous effort, like water dripping through stone, conveys the pulse of information, … Read more
Linux Server System Information # Display basic system information uname -a # View kernel version uname -r # Display information about the distribution – detailed information about the operating system lsb_release -a # Linux version cat /etc/issue cat /etc/os-release more /etc/redhat-release hostnamectl cat /proc/version # CPU information cat /proc/cpuinfo more /proc/cpuinfo | grep "model name" … Read more
Click the blue “Most Programmer” to follow me! Add a “star“, every day at 18:03 to learn technology together The commands include: 1. The free command, which displays the system memory status, including physical memory, swap memory, shared memory, and system cache usage; 2. The cat /proc/meminfo command, which reads the contents of the /proc/meminfo … Read more
This is a study note, original text: https://mp.weixin.qq.com/s/6GFHt6JY1eyz85k6xZtCVA 1. Introduction In this world, the operation of any system requires energy. Just as trees grow by relying on light energy, horses run by relying on food, and computer systems operate by relying on electrical energy. However, acquiring energy comes at a cost, so if we can … Read more
This article aims to introduce the memory usage methods in the Linux kernel, detailing the various regions of memory allocation and their functions. 1. Physical Memory Allocation 1. Physical Memory Allocation Diagram Linux kernel’s physical memory allocation General Overview: The entire physical memory is divided into four blocks. Block 1: Linux Kernel Program This is … Read more
Huawei has released several LINUX laptops, and there are a lot of hype articles online, all looking the same, clearly official promotional content that feels like swallowing a bunch of flies! “Wow, Huawei laptops can actually install WINDOWS!” — as if other laptops can’t install WINDOWS as well; “After installing WINDOWS on Huawei, the experience … Read more
In the era of smart cars, the smoothness of the in-car system has become one of the important factors for consumers when purchasing a vehicle. One of the core hardware components that determine the in-car experience is the automotive-grade chip – the Qualcomm 8155. As a mainstream high-performance automotive chip, the 8155 is widely used … Read more