Setting Up a QEMU Linux Kernel (5.10.209) Development Environment

Version Information Host Machine: <span>ubuntu 20.04.6 LTS (Focal Fossa)</span> Virtual Machine: <span>ubuntu 20.04.6 LTS (Focal Fossa)</span> The steps for installing the host machine are omitted, as they are no different from installing a virtual machine in <span>vmware</span>. It is important to ensure that <span>Intel VT-x</span> is enabled. If the virtual machine reports <span>This platform does … Read more

How to Analyze and Resolve Intermittent Packet Loss on Linux Servers?

Packet loss refers to the situation where data packets are discarded during the transmission process due to various reasons before they reach the application program. The number of discarded packets divided by the total number of transmitted packets is what we commonly refer to as the packet loss rate. The packet loss rate is one … Read more

A Guide to Time Travel in Linux

Click the “blue text” above to add it to your “starred” or “pinned” list. Essential content delivered to you first. From: Liangxu Linux (WeChat ID: liangxuxiansheng) Time travel? Is that just a scene from a movie? Liangxu, are you trying to fool us again? No, not at all. Here, Liangxu will introduce the touch command, … Read more

A Checklist of Key Items to Check Before and After Restarting a Linux System

Here is a professional version of the ✅ “Linux Pre-Restart Checklist” that is very useful in production environments. 1 ✅ Linux Pre-Restart Checklist 1. Current system load and resource usage uptime / top / htop / vmstat Record the current CPU, memory, and Load Average to compare if there is any improvement after the restart. … Read more

Exposing Linux Security Blind Spots: io_uring Mechanism Can Bypass Mainstream Detection Tools

The ARMO research team recently revealed significant flaws in Linux runtime security tools, confirming that the io_uring interface allows rootkits (kernel-level malware) to bypass conventional monitoring solutions.Tests show that mainstream tools, including Falco, Tetragon, and even Microsoft Defender for Endpoint, are unable to detect attacks utilizing this mechanism. 01 Technical Principles “This mechanism allows user-space … Read more

Young People Should Be Cautious with Linux

Seeing tk’s Weibo… it’s quite interesting: The original text is here: https://www.reddit.com/r/linuxsucks/comments/1k6e9th/i_lost_my_wife_because_of_linux/ I lost my wife because of Linux Windows ❤ It all started so innocently. I just wanted to revive my old laptop. “Try Linux,” everyone online said, “it’s fast, secure, and fully customizable.” I thought, why not? My girlfriend even encouraged me: “You … Read more

What is Zigbee Network? How to Use It in Smart Homes?

For users looking to build a stable, energy-efficient, and easily expandable smart home system, Zigbee is a time-tested solution… With the development of smart home systems, wireless interconnection between devices has become the key to the success of the system. From smart light bulbs, curtain motors, and sensors to door locks and thermostats, these devices … Read more

Creating Stunning Scenic Models of Famous Tourist Attractions in China with Liblib AI’s Flux and LoRA

In the busy pace of life, there are always some leisure moments that yearn to be given special meaning. Recently, I took advantage of my free time to carefully craft a stunning LoRA model for famous scenic spots across the country using Liblib AI’s Flux. It serves as a gateway to a dream travel world, … Read more