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Latest from Open Source Linux

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Open Source Linux

Jul 7, 2025 · Information Security

Critical Linux sudo Vulnerability (CVE‑2025‑32463) Enables Root Privilege Escalation

Borncity reported on July 1 that a critical sudo vulnerability (CVE‑2025‑32463) in Linux, caused by mishandling of /etc/nsswitch.conf and flawed options like –host, –h and –chroot, –R, can allow attackers to execute arbitrary code and elevate privileges to root, affecting sudo versions 1.9.14‑1.9.17.

CVE-2025-32463LinuxSecurity Vulnerability

0 likes · 2 min read

Critical Linux sudo Vulnerability (CVE‑2025‑32463) Enables Root Privilege Escalation

Open Source Linux

Jul 5, 2025 · Fundamentals

Why Nvidia’s Blackwell GPU Beats AMD RDNA4: Deep Dive into GB202 Architecture

This article examines Nvidia's massive GB202 Blackwell GPU—its 750 mm² die, 922 billion transistors, 192 SMs, and extensive memory subsystem—while comparing its compute units, instruction caches, atomics, and bandwidth against AMD's RDNA4‑based RX 9070, highlighting architectural trade‑offs, performance metrics, and future GPU competition.

AMD RDNA4GB202GPU Architecture

0 likes · 20 min read

Why Nvidia’s Blackwell GPU Beats AMD RDNA4: Deep Dive into GB202 Architecture

Open Source Linux

Jul 3, 2025 · Operations

Master LVM: Concepts, Commands, and Step‑by‑Step Setup Guide

This article provides a comprehensive overview of Logical Volume Manager (LVM), explains its core concepts such as physical volumes, volume groups, logical volumes and physical extents, outlines its main advantages, and walks through essential management commands with practical examples for creating, extending and removing LVM components.

LVMLinux storageLogical Volume Manager

0 likes · 10 min read

Master LVM: Concepts, Commands, and Step‑by‑Step Setup Guide

Open Source Linux

Jul 2, 2025 · Fundamentals

Master Linux Permissions: Complete Guide for Beginners

This comprehensive tutorial explains Linux permission concepts, user classifications, file type symbols, basic read/write/execute rights, numeric and symbolic representations, essential commands like chmod, chown, chgrp, and umask, as well as special permissions such as the sticky bit, providing clear examples and usage tips for effective system administration.

LinuxPermissionschmod

0 likes · 11 min read

Master Linux Permissions: Complete Guide for Beginners

Open Source Linux

Jul 1, 2025 · Operations

Fedora’s Plan to Drop i686 Support: What It Means for Gaming and Linux Users

Fedora proposes to remove i686 (32‑bit) architecture support in upcoming releases, a move that could streamline maintenance but raises concerns among gamers and projects like Bazzite that still rely on 32‑bit libraries and Steam’s 32‑bit client.

32-bitBazziteFedora

0 likes · 10 min read

Fedora’s Plan to Drop i686 Support: What It Means for Gaming and Linux Users

Open Source Linux

Jun 30, 2025 · Backend Development

How to Split Nginx Architecture into a Scalable Cluster: Database, Web Nodes, and Session Sharing

This guide explains how to break a monolithic LNMP stack into separate components—dedicated MySQL servers, multiple Nginx/PHP web nodes, shared static storage, and session persistence using Redis—while providing step‑by‑step commands, configuration snippets, and best‑practice recommendations for building a reliable, high‑performance Nginx cluster.

ClusterLoad BalancingNginx

0 likes · 18 min read

How to Split Nginx Architecture into a Scalable Cluster: Database, Web Nodes, and Session Sharing

Open Source Linux

Jun 30, 2025 · Operations

Master su and sudo: Switch Users Safely and Harness Linux Privileges

This guide explains the differences between the su and sudo commands, shows how to create and manage users, demonstrates login-shell versus non‑login-shell switching, covers the -c option for one‑off commands, and compares security implications of each method in Linux environments.

Command LineLinuxSudo

0 likes · 11 min read

Master su and sudo: Switch Users Safely and Harness Linux Privileges

Open Source Linux

Jun 27, 2025 · Operations

Mastering Nginx: Essential Configuration, Performance Tuning, and Real‑World Use Cases

This comprehensive guide walks you through Nginx’s key features, core configuration syntax, built‑in variables, global settings, common directives, HTTPS setup, CORS handling, gzip compression, access control, caching strategies, and practical examples of rewrite rules, load balancing, proxying, and server name matching, all illustrated with clear code snippets and diagrams.

CachingLoad BalancingNginx

0 likes · 41 min read

Mastering Nginx: Essential Configuration, Performance Tuning, and Real‑World Use Cases

Open Source Linux

Jun 24, 2025 · Fundamentals

From Parallel Ports to Thunderbolt: How Mobile Interfaces Evolved

This article traces the evolution of mobile data interfaces—from early parallel and serial ports through USB Type‑A and Type‑C to the high‑speed Thunderbolt standard—explaining their technical differences, advantages, and why newer connectors dominate today.

ThunderboltType-CUSB

0 likes · 4 min read

From Parallel Ports to Thunderbolt: How Mobile Interfaces Evolved

Open Source Linux

Jun 21, 2025 · Fundamentals

Mastering awk: The Ultimate Guide to Text Processing in Linux

This comprehensive tutorial explains the awk command in Linux, covering its origin, syntax, predefined variables, execution flow, functions, expressions, control structures, and practical examples, enabling readers to efficiently process and manipulate text files from the command line.

Command Lineawkregex

0 likes · 9 min read

Mastering awk: The Ultimate Guide to Text Processing in Linux