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Virtualization tutorial - IT technology blog

Automating Proxmox VE with Python: Stop Wasting Time on Manual Clicks

By admin July 19, 2026

Automating Proxmox VE with Python saves you hours of manual clicking. A detailed guide on cloning VMs, managing snapshots, and monitoring resources automatically.

MySQL

MySQL Spatial Data: The Ultimate Guide to Handling GPS Coordinates and Finding Nearby Locations

By admin July 19, 2026

Is calculating GPS distance with DECIMAL slowing down MySQL? Discover how to use Spatial Data, POINT, and Spatial Index to optimize nearby location searches for maximum speed.

VMware

Managing Multi-Site vCenter: How I Escaped ‘Tab Hell’ with Enhanced Linked Mode

By admin July 19, 2026

Managing multiple vCenter Servers has never been easier thanks to Enhanced Linked Mode (ELM). This article shares setup guides and practical experience for smooth multi-site operations.

Linux

Mosh Guide: Maintain Stable Terminal Connections Even During Network Drops or IP Changes

By admin July 19, 2026

Mosh is a lifesaver for tech professionals dealing with laggy networks or IP changes. Learn how to install and use Mosh with Tmux for persistent Terminal sessions.

Docker

Optimizing Docker Compose: Using YAML Anchors and Merge Keys to Clean Up Redundant Code

By admin July 19, 2026

Learn how to use YAML Anchors and Merge Keys to clean up Docker Compose. A solution for tidier, more maintainable, and professional microservices configuration files.

Ubuntu

Ubuntu Server 22.04 Management with Cockpit: Say Goodbye to CLI Fatigue

By admin July 19, 2026

Managing Ubuntu Server 22.04 is no longer a command-line nightmare. With Cockpit, you can monitor CPU, RAM, logs, and update your system directly in your web browser.

Artificial Intelligence tutorial - IT technology blog

Flowise: Install and Build Chatbots and RAG Pipelines with a No-Code Drag-and-Drop Interface

By admin July 18, 2026

Flowise is an open-source tool that lets you build chatbots, RAG pipelines, and AI workflows through a drag-and-drop interface — no coding required. This guide covers installation via Docker/npm and walks through building a chatbot with Ollama and a RAG pipeline for PDF document Q&A, step by step.

Development

Secure Webhooks in Node.js: HMAC-SHA256 Verification and Proper Retry Handling

By admin July 18, 2026

An unauthenticated webhook is an easy target for forged requests — this article covers how to protect a Node.js endpoint with HMAC-SHA256, handle idempotency to prevent duplicate processing on retries, and implement exponential backoff when calling downstream services. Includes complete working code and curl commands to test immediately.

Python

Automating Docker with Python: From Bash Scripts to a Professional SDK

By admin July 18, 2026

No more typing Docker commands by hand. Learn to use the Docker SDK for Python to automate Container, Image, and Network management — with real-world error handling experience included.

Docker

Docker Scout: A ‘Magnifying Glass’ for Security Vulnerabilities and How to Patch Images from CLI to CI/CD

By admin July 18, 2026

Learn how to use Docker Scout to scan for security vulnerabilities, patch critical CVEs, and automate testing with GitHub Actions to protect your images.

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

Automating Proxmox VE with Python: Stop Wasting Time on Manual Clicks

MySQL Spatial Data: The Ultimate Guide to Handling GPS Coordinates and Finding Nearby Locations

Managing Multi-Site vCenter: How I Escaped ‘Tab Hell’ with Enhanced Linked Mode

Mosh Guide: Maintain Stable Terminal Connections Even During Network Drops or IP Changes

Optimizing Docker Compose: Using YAML Anchors and Merge Keys to Clean Up Redundant Code

Ubuntu Server 22.04 Management with Cockpit: Say Goodbye to CLI Fatigue

Flowise: Install and Build Chatbots and RAG Pipelines with a No-Code Drag-and-Drop Interface

Secure Webhooks in Node.js: HMAC-SHA256 Verification and Proper Retry Handling

Automating Docker with Python: From Bash Scripts to a Professional SDK

Docker Scout: A ‘Magnifying Glass’ for Security Vulnerabilities and How to Patch Images from CLI to CI/CD