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Mastering Authselect on Fedora: Professional and Secure PAM Configuration Management

By admin May 19, 2026

Stop manual PAM editing! Learn how to use authselect on Fedora to securely manage system authentication, from SSSD configuration to handling faillock account lockouts.

Development

Building a Real-time Notification System with Node.js and Redis Pub/Sub: Rescuing the Database at 2 AM

By admin May 19, 2026

Is your notification system overwhelming your database? Learn how to build a robust real-time architecture with Node.js and Redis Pub/Sub for superior performance.

Monitoring

Prometheus Process Exporter Guide: Detailed Monitoring of Linux Process Health

By admin May 19, 2026

A detailed guide on installing Prometheus Process Exporter to monitor CPU, RAM, and I/O of individual Linux processes, helping you pinpoint the exact cause of system overloads.

Development

Mastering Load Testing with k6: From Simple Scripts to CI/CD Automation

By admin May 19, 2026

A professional guide to REST API performance testing with k6. Sharing practical insights on stages, thresholds, and CI/CD integration to keep systems stable under heavy load.

Security

SBOM: The “X-Ray” for Dependency Analysis and Vulnerability Scanning with Syft & Grype

By admin May 19, 2026

Learn how to use Syft and Grype for dependency analysis and automated vulnerability scanning. Secure your software supply chain with SBOM – a modern security standard for SREs and DevSecOps.

MySQL

Professional Database Monitoring with MySQL Audit Log Plugin

By admin May 19, 2026

A detailed guide on installing and optimizing the Percona MySQL Audit Log Plugin. This solution tracks all user actions, protects sensitive data, and meets security standards for production systems.

Fedora

Seamlessly Replacing Fedora Packages with dnf swap and dnf shell

By admin May 19, 2026

Learn how to use dnf swap and dnf shell to replace packages, switch from MariaDB to MySQL, or install full FFmpeg on Fedora without dependency conflicts.

Database

PostgreSQL Full-Text Search: High-Performance Vietnamese Search Without Elasticsearch

By admin May 19, 2026

Don't rush to install Elasticsearch! A detailed guide on building high-speed, accurate Vietnamese search directly in PostgreSQL using only tsvector and GIN Index.

Linux

Mastering chroot on Linux: From Sandbox Isolation to Real-World System Rescue

By admin May 18, 2026

Discover how to use chroot for application isolation and Linux boot rescue. A practical guide to mastering your system without the need for complex Docker or VM setups.

Security

Hunting Security Vulnerabilities with Semgrep: Fast, Accurate, and Extremely Easy Rule Writing

By admin May 18, 2026

Learn how to use Semgrep for automated source code analysis, quickly detect security vulnerabilities, and effectively integrate into CI/CD workflows for developers.

Netdisco: Effortless Network Topology Automation and Switch Port Management

Snapshot Testing with Pytest-snapshot: Stop Struggling with Manual Assertions

Say Goodbye to Passwords: Implementing Magic Links with Node.js and Nodemailer

Securing Python Source Code with PyArmor: Effectively Preventing Reverse Engineering and Protecting Intellectual Property

Feature-Sliced Design (FSD): A ‘Divide and Conquer’ Solution for Large-Scale React Projects

Building Professional CLIs with Node.js and Oclif: From Fragmented Scripts to Standardized Tools

Implementing Circuit Breaker in Python: Don’t Let a Faulty API Crash Your Entire System

Deploying FastNetMon: A Lightweight DDoS Detection Solution via NetFlow/sFlow

3 Pro GraphQL Security Tips: Don’t Hand Hackers the Keys to Your Kingdom

Securing Sudo with 2FA: The Final Defense Against Root Hijacking

Mastering Authselect on Fedora: Professional and Secure PAM Configuration Management

Building a Real-time Notification System with Node.js and Redis Pub/Sub: Rescuing the Database at 2 AM

Prometheus Process Exporter Guide: Detailed Monitoring of Linux Process Health

Mastering Load Testing with k6: From Simple Scripts to CI/CD Automation

SBOM: The “X-Ray” for Dependency Analysis and Vulnerability Scanning with Syft & Grype

Professional Database Monitoring with MySQL Audit Log Plugin

Seamlessly Replacing Fedora Packages with dnf swap and dnf shell

PostgreSQL Full-Text Search: High-Performance Vietnamese Search Without Elasticsearch

Mastering chroot on Linux: From Sandbox Isolation to Real-World System Rescue

Hunting Security Vulnerabilities with Semgrep: Fast, Accurate, and Extremely Easy Rule Writing