Posted inLinux
Managing Node.js, Python, and Go with asdf-vm: Goodbye Version Manager Mess
Manage Node.js, Python, Go, and many other languages with just a single asdf-vm tool on Linux. The perfect alternative to nvm, pyenv, and rbenv.
Posted inMySQL
Mastering Vietnamese Search in MySQL: From Sluggish LIKE to Optimized Full-Text Search
Don't let search features slow down your system. Discover how to combine Shadow Columns and MySQL Full-Text Search for seamless accented and unaccented Vietnamese queries.
Posted inMonitoring
Installing Apache SkyWalking: The ‘All-Seeing Eye’ for Microservices Monitoring from A-Z
A detailed guide on installing Apache SkyWalking for APM and microservices tracing. Includes tips on agent configuration, storage optimization, and managing alert fatigue.
Posted inCentos
CentOS Stream 9: Installing FreeIPA Client for Centralized Management of 500+ Users
Installing FreeIPA Client on CentOS Stream 9 is straightforward if you master DNS and NTP rules. This guide covers quick domain joining and centralized Sudoers configuration.
Posted inCentos
RPM Packaging on CentOS Stream 9: Stop SSH-ing and Copy-Pasting Code!
Forget manual copy-pasting! This CentOS Stream 9 RPM packaging guide helps you standardize deployments, manage dependencies smartly, and minimize production errors.
Posted inDevelopment
Idempotency in REST APIs: Preventing “Double Charges” with Node.js and Redis
Learn how to prevent duplicate transactions in REST APIs using Node.js and Redis. A practical guide to protecting data and avoiding 'double charge' errors during retries.
Posted inMonitoring
Mastering WireGuard VPN: Monitoring Bandwidth and Connectivity with Prometheus
Forget manual SSH. This guide helps you professionally monitor WireGuard VPN using Prometheus and Grafana, tracking detailed per-user traffic in real-time.
Posted inMonitoring
Monitoring Postfix Mail Server: From ‘In the Dark’ to System Mastery with Prometheus
Stop treating your Mail Server like a 'black box'. Here's a detailed guide on using Prometheus and Postfix Exporter for professional monitoring to prevent queue congestion and blacklisting.
Posted inAI
Automating Server Recovery: Building a Self-Healing Linux System with Python and GPT-4o
Build a self-healing Linux system with Python and GPT-4o. Automatically analyze logs, diagnose root causes, and execute commands to restore services quickly.
Posted inMonitoring
Monitoring Jenkins Pipelines with Prometheus: From ‘Black Box’ to 5-Star Dashboard
Learn how to monitor Jenkins Pipelines professionally with Prometheus and Grafana. This article shares practical experience on metrics configuration, endpoint security, and alert optimization to avoid alert fatigue.