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Configuring Traffic Mirroring on Linux with tc-mirred: Copy Packets to IDS/IPS Without Disrupting Service

By admin June 24, 2026

Traffic Mirroring with tc-mirred lets you copy all packets to a passive IDS/IPS device without disrupting production traffic. This guide walks through configuring both ingress and egress mirroring step by step, along with tips for selective traffic filtering and automating the setup with a systemd service.

Virtualization

Installing and Configuring Xen Hypervisor on Debian/Ubuntu: Type-1 Virtualization with XL Toolstack and Dom0

By admin June 24, 2026

A guide to installing Xen Hypervisor on Debian/Ubuntu, configuring Dom0, limiting RAM allocation, and creating DomU virtual machines with the XL toolstack. Covers PVH mode, network bridging, LVM snapshots, and everyday management commands.

MySQL

Mastering Foreign Keys in MySQL: Don’t Let Your Database Become a Data Junkyard

By admin June 24, 2026

Stop your database from becoming a junkyard. This guide covers MySQL Foreign Keys, ON DELETE CASCADE, and performance optimization tips for tables exceeding 50 million records.

Git

Upgrade Git Diff with Delta: Side-by-Side View and Beautiful Highlighting

By admin June 24, 2026

Tired of the default Git diff interface? Upgrade to Delta for side-by-side code viewing, syntax highlighting, and a professional interface right in your Terminal.

Database

pg_cron: Schedule Automated Jobs Inside PostgreSQL Without System Cron

By admin June 23, 2026

pg_cron is an extension that lets you schedule recurring jobs directly inside PostgreSQL without needing system cron or pgAgent. This article walks through installation, creating jobs for log cleanup and materialized view refreshes, and practical tips for managing jobs effectively.

Python

Building Professional Desktop Applications with Python and PySide6: From Qt Designer to Advanced Event Handling

By admin June 23, 2026

A practical guide to building desktop applications with Python PySide6 — from designing the UI in Qt Designer and handling events with Signal/Slot, to organizing production-ready code and packaging it into an executable. Based on six months of real-world experience.

Development

Mock Service Worker (MSW): Simulate APIs for Frontend — Stop Waiting on Backend

By admin June 23, 2026

Mock Service Worker (MSW) lets frontend developers intercept APIs at the network level — no need for the backend to be up and running to develop and test. This guide covers installation, writing handlers, and integrating MSW into both dev environments and unit tests.

Ubuntu

Automating Ubuntu Security Patches: How to Use unattended-upgrades Effectively

By admin June 23, 2026

Configure unattended-upgrades to automatically install security patches on Ubuntu, reducing your attack surface and saving time on routine server administration.

Docker

Professional Production Dockerization for Laravel: Multi-stage Build, Worker, and Scheduler

By admin June 22, 2026

Learn how to professionally Dockerize Laravel using Multi-stage builds. Isolate PHP-FPM, Nginx, Worker, and Scheduler to optimize performance and image size for production.

Docker

Docker & OpenTelemetry: Comprehensive Microservices Monitoring Without Touching Code

By admin June 22, 2026

Integrate OpenTelemetry into Docker for comprehensive Microservices monitoring. Detailed guide on using Auto-instrumentation to collect Traces/Metrics without modifying code.

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

Configuring Traffic Mirroring on Linux with tc-mirred: Copy Packets to IDS/IPS Without Disrupting Service

Installing and Configuring Xen Hypervisor on Debian/Ubuntu: Type-1 Virtualization with XL Toolstack and Dom0

Mastering Foreign Keys in MySQL: Don’t Let Your Database Become a Data Junkyard

Upgrade Git Diff with Delta: Side-by-Side View and Beautiful Highlighting

pg_cron: Schedule Automated Jobs Inside PostgreSQL Without System Cron

Building Professional Desktop Applications with Python and PySide6: From Qt Designer to Advanced Event Handling

Mock Service Worker (MSW): Simulate APIs for Frontend — Stop Waiting on Backend

Automating Ubuntu Security Patches: How to Use unattended-upgrades Effectively

Professional Production Dockerization for Laravel: Multi-stage Build, Worker, and Scheduler

Docker & OpenTelemetry: Comprehensive Microservices Monitoring Without Touching Code