Linux is a free and freely distributable Unix-like operating system, based on POSIX and UNIX, and supports multi-user, multi-tasking, multi-threading, and multi-CPU. It can run major UNIX tool software, applications, and network protocols. It supports both 32-bit and 64-bit hardware. Linux inherits the Unix design philosophy centered on networking and is a stable multi-user network … Read more
Linux | Red Hat Certification | IT Technology | Operations Engineerđ Join our technical exchange QQ group with 1000 members Note: [Official Account] for faster approval 1. Relevant Knowledge To complete this section’s tasks, you need to master the following knowledge: Linux create user command Linux delete user command 1.1 Linux Create User Command 1.1.1 … Read more
Click the blue “One Click Linux“, and select “Set as Starred“ First time to read valuable articles âăValuableăEmbedded Driver Engineer Learning Path âăValuableăLinux Embedded Knowledge Points – Mind Map – Free Access âăEmploymentăA comprehensive Linux IoT project to include in your resume âăEmploymentăJob Resume Template Author: CSDN Little Shrimp’s Daddy In this article, we take … Read more
In today’s digital age, virtualization technology has become an important force driving the development of the computer field. Imagine a physical host running multiple isolated virtual machines simultaneously, each appearing to have its own independent hardware resources. How is all this achieved? Today, let us embark on this mysterious exploration of Linux IO virtualization, where … Read more
Good afternoon, everyone. This article is quite long because Linux kernel virtualization is indeed a challenging concept that took me a lot of time to research. The main purpose of learning this knowledge point is still related to my DPU PhD project. While reading literature today, I came across a conference paper on “DPU Virtualization … Read more
In a KVM (Kernel-based Virtual Machine) virtualization environment, there may be a need to modify the virtual machine name after its creation due to planning issues. This article provides detailed modification steps for a production environment. Requirement: Change the name from192.168.40.152-kylinsp3-prod-02 to192.168.40.152-kylinsp3-prod-03 [root@localhost ~]# virsh list Id Name State ————————————————– 1 192.168.40.150-kylinsp3-prod-01 running 3 192.168.40.151-kylinsp3-prod-02 … Read more
According to the “2025 Global Virtualization Technology Application Report,” 83% of enterprise users experience performance loss due to incorrect CPU virtualization configuration. This article is produced by the VMware certified engineering team and provides a comprehensive analysis of virtualization optimization techniques from beginner to advanced levels. 1. Basic Understanding: What is Nested CPU Virtualization? Nested … Read more
Typically, a line of code like a = a + 1 in our code translates to three assembly instructions: ldr x0, &a add x0,x0,#1 str x0,&a That means (1) reading variable a from memory into register X0 (2) adding 1 to register X0 (3) writing X0 back to memory a Since there are three instructions, … Read more
This article is compiled by FreeBuf, Dear Little Rabbit, a tutorial on DIY drones using Raspberry Pi by Greg Nichols, originally published on ZDNet. FreeBuf is an excellent security media and technology exchange platform, and we are here to recommend a geek story they shared. After reading it, you will definitely want to try building … Read more
Modetest is a testing program provided by libdrm that can query the characteristics of display devices, perform basic display tests, and set display modes. We can use this tool to learn about Linux DRM application programming. Additionally, to analyze the Rockchip DRM driver in depth, it is necessary to first understand how to use this … Read more