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Linux Tech Enthusiast

Focused on sharing practical Linux technology content, covering Linux fundamentals, applications, tools, as well as databases, operating systems, network security, and other technical knowledge.

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Latest from Linux Tech Enthusiast

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Linux Tech Enthusiast

Sep 11, 2026 · Fundamentals

Complete Linux Network Stack Guide: Layers, Protocols & Security

This comprehensive guide covers the entire Linux network stack, explaining physical layer encoding, data link protocols like Ethernet and PPP, network layer IP addressing and routing (RIP, OSPF, BGP), transport layer TCP/UDP mechanisms, application layer services (DNS, HTTP, FTP), network security concepts, and wireless LAN standards with detailed diagrams and comparisons.

Linux networkingOSI modelTCP/IP

0 likes · 60 min read

Complete Linux Network Stack Guide: Layers, Protocols & Security

Linux Tech Enthusiast

Sep 10, 2026 · Operations

17 Must-Know Linux Ops Tricks for Sysadmins: From Log Analysis to Disk Monitoring

This article presents 17 practical Linux command-line techniques for system administrators, covering file search and manipulation with find and sed, log analysis using awk and sort, disk space monitoring with automated alerts, network packet capture via tcpdump, firewall configuration with iptables, and shell scripting for routine maintenance tasks.

Command LineDisk MonitoringFirewall Configuration

0 likes · 10 min read

17 Must-Know Linux Ops Tricks for Sysadmins: From Log Analysis to Disk Monitoring

Linux Tech Enthusiast

Sep 9, 2026 · Frontend Development

Preventing and Bypassing Web Copy-Paste Restrictions: CSS & JavaScript Techniques

This tutorial demonstrates CSS and JavaScript methods to disable text selection, right-click, copy, cut, and paste on web pages, along with three practical workarounds including saving as HTML, using print preview, and disabling JavaScript to bypass such restrictions.

CSS user-selectJavaScript event handlingbypass techniques

0 likes · 6 min read

Preventing and Bypassing Web Copy-Paste Restrictions: CSS & JavaScript Techniques

Linux Tech Enthusiast

Sep 7, 2026 · Game Development

Why Classic FC Games Were Written in 6502 Assembly Language

The article explains that FC (Famicom/NES) games like Super Mario and Contra were programmed in 6502 assembly language because the console's 6502 CPU, 2K RAM, and 40K ROM required low-level hardware control for performance and memory efficiency.

6502 CPUAssembly LanguageFamicom

0 likes · 4 min read

Why Classic FC Games Were Written in 6502 Assembly Language

Linux Tech Enthusiast

Sep 5, 2026 · Operations

trzsz: TMUX-Compatible rz/sz Alternative with Progress Bars & Drag-and-Drop Upload

The article introduces trzsz, a Python-based file transfer tool compatible with TMUX that improves upon rz/sz by adding progress bars, directory transfers, drag-and-drop uploads, and support for modern terminals like iTerm2 and Electerm, with installation guides for multiple platforms and usage examples.

SSHTMUXcommand-line tools

0 likes · 7 min read

trzsz: TMUX-Compatible rz/sz Alternative with Progress Bars & Drag-and-Drop Upload

Linux Tech Enthusiast

Aug 28, 2026 · Fundamentals

Comprehensive Guide to Linux Memory Management: Concepts, Techniques, and Code Examples

This extensive article explains Linux memory management fundamentals, covering physical and virtual memory, allocation and release mechanisms, key kernel functions, performance tuning, leak detection, fragmentation handling, and real‑world code samples for developers and system engineers.

C ProgrammingKernelLinux

0 likes · 37 min read

Comprehensive Guide to Linux Memory Management: Concepts, Techniques, and Code Examples

Linux Tech Enthusiast

Aug 25, 2026 · Operations

Comprehensive Guide to Linux Performance Optimization

This article explains Linux performance metrics, how to interpret average load and CPU context switches, walks through practical case studies using tools like vmstat, pidstat and perf, and provides concrete optimization techniques for CPU and memory, including compiler flags, cgroup limits, NUMA tuning, and swap management.

0 likes · 44 min read

Comprehensive Guide to Linux Performance Optimization

Linux Tech Enthusiast

Aug 24, 2026 · Fundamentals

How to Truly Understand Linux System Architecture?

This article explains the four main components of a Linux system—kernel, shell, file system, and applications—detailing kernel subsystems, memory and process management, the virtual file system, device drivers, network stack, mounting mechanisms, partition types, link types, and common administration commands.

File SystemKernelLinux

0 likes · 36 min read

How to Truly Understand Linux System Architecture?

Linux Tech Enthusiast

Aug 23, 2026 · Operations

The Most Dangerous Linux Commands You Should Never Run

The article showcases a collection of Linux commands that can cause severe system damage or data loss, illustrated with screenshots, warning users that executing these commands without full understanding can be extremely risky.

LinuxSecuritySystem Administration

0 likes · 1 min read

The Most Dangerous Linux Commands You Should Never Run

Linux Tech Enthusiast

Aug 22, 2026 · Operations

How to Diagnose and Fix Linux Network Packet Loss: A Step‑by‑Step Guide

This article walks through a complete Linux network‑packet‑loss investigation, from identifying loss points across the protocol stack, using ethtool, netstat, tc, iptables and tcpdump, to removing a faulty netem rule and correcting an MTU setting, ultimately restoring Nginx HTTP responses.

LinuxTroubleshootingiptables

0 likes · 12 min read

How to Diagnose and Fix Linux Network Packet Loss: A Step‑by‑Step Guide