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Implementing Zero-Downtime Blue-Green Deployment with Docker Compose & Nginx

By admin April 15, 2026

Don't let customers see 502 errors every time you update code. Discover the secret to simple Blue-Green Deployment with Docker Compose and Nginx for true Zero-Downtime.

Centos

Live Patching Kernel Vulnerabilities on CentOS Stream 9 with kpatch: Security Updates Without Reboots

By admin April 15, 2026

Install and use kpatch on CentOS Stream 9 for 'hot' kernel security patching. Live Patching ensures 100% uptime by fixing vulnerabilities without restarting your server.

MySQL

MySQL Performance Tuning: Boosting Speed with Buffer Pool and Thread Pool in Practice

By admin April 15, 2026

Expert secrets for practical MySQL optimization: Configuring Buffer Pool, Thread Pool, and Redo Log to speed up queries, reduce Disk I/O, and stabilize systems during high traffic.

Development

RabbitMQ + Python: The ‘Lifesaver’ Solution to Eliminate Application Lag for Background Tasks

By admin April 15, 2026

Learn how to use RabbitMQ and Python for professional background task processing. An optimal solution to reduce latency, increase scalability, and ensure data safety for backend applications.

Ubuntu

Installing ZFS on Ubuntu: The ‘Lifesaver’ for Peace of Mind and Data Security

By admin April 15, 2026

ZFS is a top-tier storage solution offering absolute data protection through Snapshots and RAID-Z. Learn how to install and optimize ZFS on Ubuntu for professional-grade storage.

Docker

Using Dive to Inspect Docker Image Layers: How I Slimmed Down an Image from 1.5GB to 120MB

By admin April 15, 2026

Learn how to use Dive to dissect Docker image layers, identify junk files, and optimize image size from 1.5GB to 120MB through a real-world example.

Security

Gitleaks Installation Guide: The “Shield” to Prevent Secret and API Key Leaks in Git

By admin April 15, 2026

Don't let API key leaks ruin your career. A detailed guide on installing Gitleaks to automatically detect and prevent secret exposure in Git repositories.

VMware

The Ultimate Fix for I/O Lag: Converting VMware Thin to Thick Provisioning

By admin April 15, 2026

Is your VMware system lagging due to I/O latency? Learn how to convert from Thin to Thick Provisioning using vSphere Client and vmkfstools to optimize performance for SQL Server and Databases.

Development

Building Real-time Applications with WebSocket and Node.js: From Chat Apps to 10,000 CCU Dashboards

By admin April 14, 2026

Learn how to build real-time applications from Chat Apps to professional monitoring Dashboards. This article shares experiences in handling memory leaks, scaling with Redis, and optimizing performance for 10,000+ connections.

Docker

Goodbye var_dump: How to Properly Configure Xdebug in Docker and VS Code

By admin April 14, 2026

Learn how to set up Xdebug in Docker and connect it to VS Code for professional PHP debugging. Eliminate var_dump and save 40% of your bug-hunting time.

Configuring Multi-WAN Failover on Linux: A “Never-Down” Internet Solution with Keepalived

Podman Auto-update on Fedora: Automating Containers the Native Way

Installing MinIO on CentOS Stream 9: Build Your Own S3 Storage with SELinux and Firewalld

Installing Grafana on CentOS Stream 9: Professional Server Monitoring with Prometheus

SSH Bastion Host (Jump Server) Configuration Guide: A Secure Gateway for Linux Systems

Goodbye Cron Jobs: Building Durable Workflows with Temporal.io in Node.js

Goodbye Passwords: Implementing Passkeys (WebAuthn) with Node.js and SimpleWebAuthn

Installing Virtualmin on Ubuntu 22.04: A ‘$0’ Multi-Domain Hosting Management Solution

Mastering OpenSSL: From Creating Self-Signed Certs to ‘Lightning-Fast’ TLS Debugging

Deploying MySQL 8 on Fedora Server: Production Configuration Guide and SELinux Troubleshooting

Implementing Zero-Downtime Blue-Green Deployment with Docker Compose & Nginx

Live Patching Kernel Vulnerabilities on CentOS Stream 9 with kpatch: Security Updates Without Reboots

MySQL Performance Tuning: Boosting Speed with Buffer Pool and Thread Pool in Practice

RabbitMQ + Python: The ‘Lifesaver’ Solution to Eliminate Application Lag for Background Tasks

Installing ZFS on Ubuntu: The ‘Lifesaver’ for Peace of Mind and Data Security

Using Dive to Inspect Docker Image Layers: How I Slimmed Down an Image from 1.5GB to 120MB

Gitleaks Installation Guide: The “Shield” to Prevent Secret and API Key Leaks in Git

The Ultimate Fix for I/O Lag: Converting VMware Thin to Thick Provisioning

Building Real-time Applications with WebSocket and Node.js: From Chat Apps to 10,000 CCU Dashboards

Goodbye var_dump: How to Properly Configure Xdebug in Docker and VS Code