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Linux & Systems Administration

Fedora 中文字体配置指南
ByEric Ma Jul 13, 2013Apr 13, 2026

Fedora 中文字体的显示一直是个常见问题，特别是在英文环境中。通过合理的字体配置，可以获得清晰舒适的中文显示效果。本文介绍的方案使用开源字体，这些字体在 Fedora 的标准仓库中都可以获得。快速配置如果你只想快速完成配置，运行以下命令： sudo dnf install cjkuni-ukai-fonts cjkuni-uming-fonts sudo wget https://raw.githubusercontent.com/zma/config_files/master/others/local.conf \ -O /etc/fonts/local.conf 这会安装文鼎楷体和文鼎明体，并配置字体渲染优先级。注销后重新登录即可生效。推荐字体包 Fedora 仓库中提供了多个中文字体包：基础中文字体： # 文鼎明体 — 适合正文阅读，清晰度高 sudo dnf install cjkuni-uming-fonts # 文鼎楷体 — 适合标题和打印 sudo dnf install cjkuni-ukai-fonts Google Noto 字体（推荐）： # Noto Sans CJK — 现代、清晰、覆盖全面 sudo dnf install google-noto-sans-cjk-fonts # Noto Serif CJK…

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Linux & Systems Administration

Installing NVIDIA Drivers on Fedora
ByEric Ma Jul 13, 2013Apr 13, 2026

Installing NVIDIA drivers on Fedora is straightforward when using RPM Fusion repositories. This guide covers modern Fedora releases (39+) using DNF package management. Prerequisites Before starting, determine which driver your GPU requires. Check the NVIDIA driver download page or use this command to identify your GPU: lspci | grep -i nvidia For newer GPUs (Maxwell…

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Linux & Systems Administration

Creating ISO Images from DVDs on Linux
ByEric Ma Jul 13, 2013Apr 12, 2026

ISO images are sector-by-sector copies of optical media stored as binary files. They’re useful for archiving DVDs or creating portable copies without keeping physical disks around. On Linux, several tools can accomplish this—dd is the simplest, but modern alternatives offer better features. Using dd to Create an ISO Image The most straightforward approach uses dd:…

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Linux & Systems Administration

Installing Compiz Fusion on Fedora
ByEric Ma Jul 13, 2013Apr 13, 2026

Compiz Fusion is a lightweight 3D window manager and compositing system that can replace your standard window manager. While it’s rarely the default choice on modern Fedora installations, it remains available for users who want its visual effects and functionality. Note: Compiz development has slowed significantly. Most Fedora users today use Wayland-based desktops (GNOME, KDE…

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Linux & Systems Administration

Optimizing Firefox DNS Resolution on Linux
ByEric Ma Jul 13, 2013Apr 13, 2026

DNS lookups can be a bottleneck in Firefox browsing performance. Here are practical methods to optimize DNS resolution and related network behavior. Disable IPv6 (if not needed) If your network doesn’t use IPv6, disabling it can eliminate unnecessary lookup delays. In Firefox, navigate to about:config and set these preferences: network.dns.disableIPv6 → true This prevents Firefox…

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Linux & Systems Administration

Adding Loop Devices in Linux: A Practical Guide
ByEric Ma Jul 13, 2013Apr 13, 2026

The default number of loop devices on most Linux systems is 8, which is often insufficient for scenarios like running multiple virtual machines with loop device-backed storage, containerized environments, or disk image management. If you need more than the default allocation, you’ll need to increase max_loop. First, check your current loop device count: losetup -f…

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Linux & Systems Administration

MobileNet Configuration on Linux: HKUST Setup Guide
ByEric Ma Jul 13, 2013Apr 13, 2026

To connect to HKUST’s sMobileNet wireless network via NetworkManager, you’ll need to configure WPA2 Enterprise authentication with PEAP. This guide covers the required settings. Network Settings Configure the following parameters in NetworkManager: Basic Settings: SSID: sMobileNet Wireless security: WPA & WPA2 Enterprise Authentication method: Protected EAP (PEAP) Authentication Details: Anonymous identity: (leave empty) PEAP version:…

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Linux & Systems Administration

Managing Virtual Machines on Xen: A Getting Started Guide
ByEric Ma Jul 13, 2013Apr 12, 2026

Xen remains a robust hypervisor for production environments—AWS EC2, Citrix Hypervisor, and many hosting providers still rely on it. However, KVM has become the default for most Linux distributions due to simpler management and better integration with standard tooling. For new deployments on standard Linux, evaluate KVM with libvirt or container solutions like Docker and…

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Linux & Systems Administration

Chinese Character Support on Fedora 11
ByEric Ma Jul 13, 2013Apr 12, 2026

Configuring proper Chinese character rendering in Fedora requires attention to font selection and system settings. This guide covers configuration for contemporary Fedora/RHEL systems where you run an English locale but need reliable Chinese character display. Font Selection You have several solid open-source options for Chinese fonts. Each has different characteristics suited to different use cases….

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Linux & Systems Administration

GNOME 2 Desktop Environment: macOS-Inspired Setup for Linux
ByEric Ma Jul 13, 2013Apr 12, 2026

Customizing your desktop environment to match macOS aesthetics remains popular on Linux, though the approach differs significantly from GNOME 2 era configurations. Modern desktop environments like GNOME (40+) and KDE Plasma (5/6) use different theming systems, but achieving an Apple-inspired look is still straightforward. Current Desktop Environment Options GNOME 40+ uses CSS-based theming and GTK…

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Linux & Systems Administration

Extracting Audio from Videos with MPlayer and LAME
ByEric Ma Jul 13, 2013Apr 13, 2026

Converting audio tracks from video files is useful for extracting soundtracks, creating audio-only versions for podcasts, or generating files optimized for audio playback. While MPlayer was historically used for this task, ffmpeg is now the standard tool—it’s actively maintained, more efficient, and handles both extraction and encoding in one step. Installation Install ffmpeg on your…

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Testing & DevOps

Building VMs with VMware Player and QEMU Images
ByEric Ma Jul 13, 2013Apr 13, 2026

Free virtualization on Linux has multiple solid options. While VMware Player is still available, QEMU combined with libvirt has become the standard approach for most sysadmins. This guide covers creating VM disk images and configurations that work across multiple hypervisors. Creating Virtual Disk Images The first step is creating a virtual disk. QEMU’s qemu-img tool…

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Linux & Systems Administration

Vim Tips for Daily Development
ByEric Ma Jul 13, 2013Apr 13, 2026

Split the current window horizontally: Ctrl-W Ctrl-S Switch between windows: Ctrl-W Ctrl-W ” toggle to next window Ctrl-W j ” move to window below Ctrl-W k ” move to window above Ctrl-W h ” move to window left Ctrl-W l ” move to window right Rotate window positions: Ctrl-W Ctrl-R ” rotate clockwise Ctrl-W Ctrl-X…

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Linux & Systems Administration

Configuring GNOME Desktop Settings with GConf Editor
ByEric Ma Jul 13, 2013Apr 13, 2026

Modern GNOME uses dconf as its configuration backend, replacing the older GConf system. Whether you’re managing a single workstation or deploying across multiple systems, understanding dconf and gsettings is essential for customizing GNOME environments efficiently. Understanding the Configuration Stack GNOME’s configuration hierarchy works like this: dconf — the low-level database storing all settings gsettings —…

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Linux & Systems Administration

Creating, Mounting, and Burning ISO Images on Linux
ByEric Ma Jul 13, 2013Apr 13, 2026

Mounting an ISO on Linux requires a loop device. Modern systems support this directly with mount: sudo mount -o loop /path/to/image.iso /mnt/mount-point Or use the -t iso9660 option for explicit filesystem specification: sudo mount -t iso9660 -o loop /path/to/image.iso /mnt/mount-point To unmount: sudo umount /mnt/mount-point For temporary mounts that don’t require persistence across reboots, consider…

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Programming Languages

Migrating from MediaWiki Back to WordPress
ByEric Ma Jul 12, 2013Apr 13, 2026

After running on MediaWiki, we migrated back to WordPress. Both platforms have their strengths, but WordPress proved to be the better fit for our site’s goals. What WordPress Does Better for This Site Plugin Ecosystem and Content Discovery WordPress’s plugin landscape is significantly deeper than MediaWiki’s. The YARPP (Yet Another Related Posts) plugin and its…

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Linux & Systems Administration

How to Schedule Cron Jobs at Custom Intervals
ByEric Ma Mar 25, 2013Apr 12, 2026

Crontab controls what runs and when. Each crontab entry has this format: .—————- minute (0-59) | .————- hour (0-23) | | .———- day of month (1-31) | | | .——- month (1-12) OR jan,feb,mar,apr … | | | | .—- day of week (0-6) (Sunday=0 or 7) OR sun,mon,tue … | | | | |…

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Linux & Systems Administration

Compressing Files in Linux: gzip, bzip2, 7z, rar, and zip
ByEric Ma Mar 25, 2013Apr 12, 2026

File compression is a routine task in Linux administration. You’ll encounter several tools, each with different tradeoffs between compression ratio, speed, and compatibility. This guide covers the most common compression formats: gzip, bzip2, 7z, xz, and zip. The examples below assume you’re compressing a directory called dir. Each tool supports compression level options — you…

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Systems & Architecture

Storage Architecture: Lessons from Google’s Infrastructure
ByEric Ma Jan 22, 2013Apr 12, 2026

Andrew Fikes, Principal Engineer at Google, presented on storage architecture and the fundamental challenges that emerge when operating at scale. The presentation from the 2010 Faculty Summit remains relevant for understanding how distributed storage systems must be designed and the trade-offs inherent in large-scale deployments. Core Storage Challenges at Scale Google’s storage systems had to…

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Systems & Architecture

Lessons from Building Large-Scale Distributed Systems
ByEric Ma Jan 22, 2013Apr 12, 2026

Jeff Dean’s “Designs, Lessons and Advice from Building Large Distributed Systems” is essential reading for anyone building or operating distributed infrastructure. This talk, presented at multiple conferences including LADIS and various tech events, distills decades of experience at Google and now at Google Research. If you’re designing systems that scale beyond a single machine, you…

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