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 walks through the most important files and subdirectories under /etc—such as /etc/profile, /etc/bashrc, user‑specific .bash_* files, /etc/motd, /etc/issue, shadow‑password utilities, fstab and rc.local—explaining when they are executed, what they configure, and how they affect system behavior.
This article walks through the complete Linux kernel boot sequence, from the bootloader loading a compressed vmlinuz image and initramfs, through decompression and the start_kernel routine, to the creation of PID 0, 1, 2 and the init process that launches system services and the user interface.
This article introduces modern‑labwc, a lightweight Wayland compositor that bundles 20 ready‑made themes, dynamic wallpaper‑based color generation, and a full Rofi‑based control suite, and provides step‑by‑step installation for Arch and other Linux distributions to quickly create a polished, low‑resource desktop.
The article traces the evolution of computing from primitive counting tools like stones and fingers, through mechanical calculators and early programming concepts, to punched‑card data processing, vacuum‑tube electronics, and the first electronic computers such as the Mark I and ENIAC, highlighting key inventions, innovators, and their lasting impact on modern computing.
TCP is a connection‑oriented, reliable, byte‑stream transport protocol; this article explains its header fields, state diagram, three‑way handshake, four‑way termination, TIME_WAIT handling, optimization techniques, and contrasts it with UDP, providing detailed Linux commands and kernel parameters.
This study surveys members of the Chaos Computer Club and analyzes over 45,000 Exploit‑DB entries to identify the programming languages most commonly used by hackers, describing the data‑collection process, language‑detection methodology with Pygments, and revealing trends such as the dominance of Shell and Python and the evolving preferences over time.
This article explains TCP and UDP fundamentals, detailing TCP header fields, flow‑control and congestion‑control mechanisms, the three‑way handshake and four‑way termination, UDP’s connectionless nature, and a side‑by‑side comparison of the two protocols.
The article walks through a seemingly simple C file‑creation snippet that fails on Windows because Microsoft's tmpfile() uses C:\, then reveals a hidden bug where a stray backslash in a comment and a missing space in an expression silently turn code into comments, illustrating how tiny syntax errors can break cross‑platform programs.
This article provides a step‑by‑step guide to Linux shell scripting, covering the definition of a shell, common shells, naming rules, environment and user variables, control‑flow statements, functions, arrays, and several practical scripts such as a Hello World program, service checks, system backup, information collection, and one‑click LNMP deployment.
This article introduces seven fundamental data structures—arrays, queues, stacks, linked lists, trees, graphs, and hash tables—explaining their concepts, typical use cases, strengths, and limitations to help developers choose the right tool for efficient program design.
