Focused on sharing practical Linux technology content, covering Linux fundamentals, applications, tools, as well as databases, operating systems, network security, and other technical knowledge.
This article compiles a comprehensive cheat‑sheet of Linux commands, ranging from basic file operations to advanced networking utilities, presented through a series of screenshots that together form a practical reference for network engineers.
This article introduces Linux’s widely used directory hierarchy, explains the most common command syntax, and provides a concise reference of essential file‑management, compression, permission, and Vim editing commands, complete with illustrative screenshots and practical examples for beginners and system administrators.
This guide walks through Linux disk management fundamentals, covering how to partition disks with fdisk or gdisk, create filesystems using mkfs, mount and unmount devices, configure automatic mounts via /etc/fstab, and handle special cases such as ISO images and Windows shares.
This guide details fourteen essential Linux security hardening steps—including shared account checks, account lock policies, root remote‑login restrictions, password complexity and aging, critical directory permissions, logging, SSH hardening, unnecessary service removal, Ctrl‑Alt‑Del disabling, and patch installation—targeted at Red Hat AS 3/4 systems.
This article introduces four command‑line tools—MySQLTuner.pl, tuning‑primer.sh, pt‑variable‑advisor, and pt‑query‑digest—explaining how to download, run them, and interpret their reports to assess MySQL performance, configuration, and query efficiency.
Although a 1000 Mbps link theoretically carries 125 MB of data per second, protocol headers, Ethernet framing, MTU limits, and VLAN tags reduce the effective throughput, and using jumbo frames can raise efficiency from about 97.5 % to 99.6 %.
The author recounts how a sudden system freeze while using Vim caused an unsaved article to be lost, revealing the danger of disabling Vim's swap files and underscoring the importance of regular saves and backups for any editing or configuration work.
Ubuntu stands out as the Linux distribution that most closely mirrors Windows in popularity, ecosystem breadth, and user friendliness, making it a go‑to choice for newcomers, developers, servers, cloud, AI, and embedded systems, while still drawing criticism for Snap and commercial ties.
The article explains that ordinary users stick with Windows or macOS because of familiarity and convenience, while tech professionals gravitate toward Linux for its openness, flexibility, stability, and suitability to command‑line, server, development, and automation tasks, making the switch a functional choice rather than a rebellion.
The article explains that while modern Linux desktop distributions are user‑friendly, configuring Chinese input methods can be the most confusing step for newcomers, detailing differences between Chinese‑focused and international distributions, common input frameworks like IBus, Fcitx5 and Rime, and practical ways to overcome the barrier.
