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LazyDocker: Manage Docker via Terminal the “Lazy” but Professional Way

By admin May 18, 2026

Managing dozens of containers has never been easier. Discover LazyDocker - a powerful Terminal UI for viewing logs, monitoring CPU/RAM, and managing Docker fast.

MySQL

MySQL 8 Invisible Columns: The ‘Secret Weapon’ for Database Upgrades Without Breaking Your App

By admin May 18, 2026

Invisible Columns in MySQL 8 helps you upgrade table structures without breaking legacy applications. Learn how to add stealth metadata columns and apply them to zero-downtime deployments.

Docker

Testcontainers Guide: Stop Using H2 Database for Integration Testing

By admin May 17, 2026

The era of using H2 Database for testing is over. Here is a detailed guide on using Testcontainers with Docker to automate Integration Tests and ensure production parity.

Network

Mastering iproute2: Moving Beyond Just Assigning IPs

By admin May 17, 2026

Ditch ifconfig and master iproute2. A detailed guide covering IP management, MTU optimization for VPNs, and Policy Based Routing (PBR) for Multi-WAN systems.

Security

Self-hosting Passbolt with Docker: Ending Password Sharing via Zalo for Tech Teams

By admin May 17, 2026

Stop the habit of sending passwords via Zalo. Learn how to install self-hosted Passbolt with Docker for professional team credential management with GPG encryption and transparent Audit Logs.

MySQL

MySQL Multi-Source Replication: The Ultimate Consolidation Trick for Data Engineers

By admin May 17, 2026

Tired of manual data aggregation? Discover how to configure MySQL Multi-Source Replication to consolidate data from multiple masters into a single source. Practical tips on handling ID conflicts and speed optimization for MySQL 8.0.

Ubuntu

Optimizing Ubuntu with XanMod Kernel: Reduce Latency and Boost System Speed

By admin May 17, 2026

A guide to installing and optimizing XanMod Kernel on Ubuntu based on real-world experience. Reduce system latency and boost processing speeds for both servers and personal computers effectively.

Network

Building a Site-to-Site VPN with StrongSwan: Secure and Professional Branch Connectivity

By admin May 17, 2026

Need to connect internal networks between offices? This detailed StrongSwan Site-to-Site VPN setup guide helps you build secure, stable IPsec tunnels on Linux with real-world troubleshooting tips.

Virtualization

KubeVirt: Running Virtual Machines Directly on Kubernetes for DevOps

By admin May 17, 2026

KubeVirt bridges the gap between VMs and containers, enabling centralized management on Kubernetes. Explore deployment steps and practical tips to optimize your DevOps infrastructure.

Fedora

Mastering rpm-build and rpmlint: Bringing ‘Home-Grown’ Scripts to Fedora Standards

By admin May 17, 2026

Stop manual file copying! Learn to package RPMs on Fedora with rpm-build and rpmlint for professional software management, automated dependencies, and fast deployment.

Building Your Own Mail Server with Postfix and Dovecot on Ubuntu 22.04: Take Full Control of Your Mail Flow

CentOS 7 to AlmaLinux/Rocky Linux Upgrade Guide using ELevate: Fast, Efficient, No Reinstall Needed

Eliminate ‘Noisy Neighbor’ Issues with VMware SIOC: Protecting Bandwidth for Critical VMs

Handling IOMMU Groups with ACS Override Patch: The Ultimate GPU Passthrough Trick for Budget Motherboards

Optimizing Proxmox: How to Create a ‘Gold Standard’ LXC Template for Mass Deployment in 30 Seconds

Optimizing PHP 8.3 on Ubuntu 24.04: Don’t Let Your Server Run Like a Snail

Mastering Python functools: Writing Better, Faster Code

Fixing SELinux Errors on Fedora for Good: Use setroubleshoot and audit2allow Instead of Disabling It

Build Your Own High-Performance, Low-Cost Git Server with Gitea on Fedora: Maximum Security with SELinux

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

LazyDocker: Manage Docker via Terminal the “Lazy” but Professional Way

MySQL 8 Invisible Columns: The ‘Secret Weapon’ for Database Upgrades Without Breaking Your App

Testcontainers Guide: Stop Using H2 Database for Integration Testing

Mastering iproute2: Moving Beyond Just Assigning IPs

Self-hosting Passbolt with Docker: Ending Password Sharing via Zalo for Tech Teams

MySQL Multi-Source Replication: The Ultimate Consolidation Trick for Data Engineers

Optimizing Ubuntu with XanMod Kernel: Reduce Latency and Boost System Speed

Building a Site-to-Site VPN with StrongSwan: Secure and Professional Branch Connectivity

KubeVirt: Running Virtual Machines Directly on Kubernetes for DevOps

Mastering rpm-build and rpmlint: Bringing ‘Home-Grown’ Scripts to Fedora Standards