Rocky Linux China Mirrors: Quick Setup for Tsinghua & Aliyun Rocky Linux is a RHEL derivative — changing mirrors works exactly the same as Fedora. Tsinghua Mirror sudo sed -i 's/metalink=https://mirrors.rockylinux.org/metalink?repo=rocky/#mirrorlist=https://mirrors.tuna.tsinghua.edu.cn/rocky/mirrors/metalink?repo=rocky/g' /etc/yum.repos.d/rocky.repo sudo dnf makecache Aliyun Mirror sudo sed -i 's/metalink=https://mirrors.rockylinux.org/metalink?repo=rocky/#mirrorlist=https://mirrors.aliyun.com/rocky/mirrors/metalink?repo=rocky/g' /etc/yum.repos.d/rocky.repo sudo dnf makecache Verified working on Rocky Linux 9 — the commands are... » read more

Fedora China Mirrors: Tsinghua & Aliyun Repository Setup Fedora 36+ uses DNF for package management — config files are in /etc/yum.repos.d/. Tsinghua Mirror sudo sed -i 's/metalink=https://mirrors.fedoraproject.org/metalink?repo=fedora/#mirrorlist=https://mirrors.tuna.tsinghua.edu.cn/fedora/metalink?repo=fedora/g' /etc/yum.repos.d/fedora.repo sudo sed -i 's/metalink=https://mirrors.fedoraproject.org/metalink?repo=updates/#mirrorlist=https://mirrors.tuna.tsinghua.edu.cn/fedora/updates/?metalink/g' /etc/yum.repos.d/fedora-updates.repo sudo dnf makecache Aliyun Mirror sudo sed -i 's/metalink=https://mirrors.fedoraproject.org/metalink?repo=fedora/#mirrorlist=https://mirrors.aliyun.com/fedora/mirrors/metalink?repo=fedora/g' /etc/yum.repos.d/fedora.repo sudo dnf makecache It’s even better if you also switch the Fedora... » read more

Arch Linux China Mirrors: Tsinghua & USTC Mirror Setup Arch manages mirror sources through /etc/pacman.d/mirrorlist. Enable Mirrors # Tsinghua sudo sed -i '/^## China/,/^$/s/^#Server/Server/' /etc/pacman.d/mirrorlist sudo sed -i 's|Server = https://geo.mirror.pkgbuild.com|Server = https://mirrors.tuna.tsinghua.edu.cn/archlinux/|g' /etc/pacman.d/mirrorlist # USTC sudo sed -i 's|Server = https://geo.mirror.pkgbuild.com|Server = https://mirrors.ustc.edu.cn/archlinux/|g' /etc/pacman.d/mirrorlist Sort and Optimize sudo pacman-mirrors --country China --fasttrack 5 sudo... » read more

Debian China Mirrors: Quick Setup for Tsinghua, USTC & Aliyun Debian mirror switching is similar to Ubuntu — the config file is at /etc/apt/sources.list. Tsinghua Mirror sudo sed -i 's/deb.debian.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list sudo sed -i 's/security.debian.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list sudo apt update USTC Mirror sudo sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list sudo sed -i 's/security.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list sudo apt update Aliyun... » read more

Ubuntu China Mirrors: One-Click Switch to Tsinghua, USTC & Aliyun Ubuntu’s default repositories are overseas — one update takes forever. Switch to a domestic mirror with just three commands. Tsinghua Mirror sudo sed -i 's/archive.ubuntu.com/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list sudo sed -i 's/security.ubuntu.com/mirrors.tuna.tsinghua.edu.cn/g' /etc/apt/sources.list sudo apt update USTC Mirror sudo sed -i 's/archive.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list sudo sed -i 's/security.ubuntu.com/mirrors.ustc.edu.cn/g'... » read more

Have you ever been tortured by traditional CSS? Want to give a button rounded corners? border-radius: 9999px. Want to add a shadow? box-shadow: 0 4px 6px rgba(0,0,0,0.1). Want a hover effect? Write another set of button:hover {}… By the time you finish one component, the CSS file is longer than the HTML. Tailwind CSS is... » read more

OpenMTP: High-Speed File Transfer Between Linux and Android — Ubuntu Install & Usage Have you ever felt this? You buy a Linux laptop, want to transfer some files to your Android phone, plug it in via USB, and the system doesn’t even recognize it. When it finally does, you can see the phone storage in... » read more

elementary OS China Mirror Recommendations & Installation Guide: One-Click Switch to Tsinghua & USTC Have you used elementary OS? It’s the most macOS-like Linux distro I’ve ever seen. Clean interface, rounded icons, an overall aesthetic that’s artsy to the core. Under the hood it runs Ubuntu, so compatibility isn’t a concern. But here’s the problem:... » read more

Setting Up ZeroTier on Alpine Linux: A Step-by-Step Guide to Private Planetary Networks Have you ever been in this situation: your lab’s server is on the internal network, and you want to connect to it from home, only to find — you can’t get in? The conventional solution is to set up a VPN, but... » read more

Playing Diablo 4 on Linux: A Three-Way Struggle Between Players, Valve, and Blizzard For players wanting to play Diablo 4 on Linux in 2026, it’s been an emotional rollercoaster. In April, the Chinese server launched with a limited-time free claim — Linux players cheered, finally able to grind on Ubuntu. At the end of June,... » read more

RustDesk High-Risk Alert: Botnet Scans Continue, New Wave of Critical Vulnerabilities Arrives If you’re using RustDesk, 2026 might be the year you need to pay the most attention to security. In the first half of the year, botnets were scanning the entire internet for RustDesk IDs, launching automated attacks. Before the second half even began,... » read more

Copy Fail (CVE-2026-31431) Diagnosis & Fix Guide: Is Your Server Compromised? The previous article covered how serious this vulnerability is. Now let’s get practical — how to check if your system is affected, how to fix it, and what to do in an emergency. One thing upfront: If your server is shared by multiple users... » read more

CVE-2026-31431 (Copy Fail): Root with a Single Python Script — A 9-Year Linux Kernel Blight On April 29, 2026, the security research team Theori disclosed a Linux kernel vulnerability codenamed Copy Fail, numbered CVE-2026-31431, with a CVSS score of 7.8 (High). But what makes this vulnerability truly unsettling isn’t the score — it’s three facts:... » read more

TinyMediaManager Advanced: Batch Organization, Automated Workflows, and Docker Unattended Operation The first two articles covered what TMM is and how to install it. This one goes further — how to make TMM truly shine. If you already have hundreds or thousands of movies, scraping them one by one manually is impractical. The real way to... » read more

TinyMediaManager Ubuntu Installation and Configuration: Set Up Your Media Library Preprocessing Center Step by Step The previous article introduced what TMM is. Now let’s get hands-on. I’ll cover two installation methods: Direct Installation (suitable for desktop environments) and Docker Deployment (suitable for server/NAS headless operation). Choose based on your situation. Method 1: Direct Installation on... » read more

TinyMediaManager: The Metadata Power Tool for Movie Enthusiasts Have you ever experienced this — You scan your movie library in Emby or Jellyfin, and half the covers are empty. After it finally finishes scanning, you find that “The Matrix” got matched as “Mr. Robot,” and “Inception” has a Japanese poster. You spend an hour fixing... » read more

Supermium Usage Guide: Download, Configuration, Tuning — Everything You Need to Know The previous article introduced what Supermium is. Now for something practical — how to install it, configure it, and tune it to be exactly what you want. Supermium is based on Chromium, so its operation is largely the same as Chrome. But it... » read more

Supermium: The Amazing Browser That Lets Windows XP Run the Latest Chrome Engine Do you have an old computer gathering dust? Windows XP, Vista, or an antique laptop running Windows 7 — too precious to throw away, yet unusable because the browser has long since stopped working. Chrome and Firefox dropped support for these systems... » read more

Kitty: A GPU-Rendered Terminal That Doesn’t Feel Like a Traditional Terminal Have you ever done this in a terminal — cat a log file that’s tens of MB in size, watching the screen scroll line by line, stuttering as it goes? Or wanted to view an image directly in the terminal, only to find you... » read more

WindTerm: Open-Source Cross-Platform SSH Terminal, A Swiss Army Knife for Sysadmins Have you ever had this experience — You open a terminal to connect to a server, only to find you need to open FileZilla to transfer files. Then you switch to serial debugging, which requires yet another piece of software. Want to view logs... » read more