Focused on sharing practical Linux technology content, covering Linux fundamentals, applications, tools, as well as databases, operating systems, network security, and other technical knowledge.
A comprehensive A‑Z reference of over 600 common Linux commands, each with a brief description of its function and typical usage, providing a handy quick‑lookup guide for system administrators, developers, and anyone working with the Linux command line.
This guide shows how to edit nginx.conf to adjust worker_processes based on CPU cores, explains when I/O blocking requires extra workers, and demonstrates Linux‑only worker_cpu_affinity settings with concrete examples for 2, 4, and 8‑core systems, including the exact commands to apply and reload the configuration.
The article explains that classic FC (NES) games like Super Mario and Contra were programmed in NES-specific assembly language because the 6502 CPU and the console’s tight 2 KB RAM and 40 KB ROM constraints required low‑level, opcode‑precise code for optimal performance.
This article explores eight practical uses of the ‘!’ history‑expansion operator in Linux shells, covering numbered command recall, negative indexing, argument reuse, multi‑parameter handling, keyword‑based recall, repeat‑last‑command shortcuts, selective file deletion, and directory‑existence checks, each illustrated with concrete examples.
The article explains how Intel’s newly announced x86S architecture simplifies the decades‑old x86 design by dropping 16‑ and 32‑bit modes while still supporting legacy 32‑bit applications, reducing processor complexity and improving performance amid growing ARM competition.
This article provides a comprehensive, illustrated guide to TCP and UDP, covering the TCP header fields, flow‑control and congestion‑control mechanisms, the three‑way handshake and four‑way termination process, as well as a side‑by‑side comparison of the two protocols.
This guide showcases ten entertaining Linux commands—rev, asciiview, sl, aafire, cmatrix, factor, oneko, boxes, xeyes, and pv—providing installation steps, example usage, and screenshots to help you explore quirky terminal utilities and add some fun to your Linux workflow.
This article walks through installing BIND, configuring the named.conf file, setting up master and slave zones, creating forward and reverse zone files, starting the named service, and verifying the setup with nslookup, including a fail‑over test to demonstrate slave activation.
This article walks through seven practical uses of the Linux find command—including name/regex searches, type filtering, timestamp, size, permission, ownership queries, and executing actions—while illustrating each with concrete examples and explaining interview‑style scenarios.
This article explains how to use rsync for fast, incremental file synchronization over LAN/WAN, covering its algorithm, supported platforms, command‑line options, SSH and daemon modes, detailed configuration parameters, and real‑time syncing with inotify‑tools.
