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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.

Ubuntu

Centralized Server Management with Apache Guacamole on Ubuntu: RDP and SSH Directly in Your Browser

By admin July 18, 2026

A guide to installing Apache Guacamole on Ubuntu for accessing RDP, SSH, and VNC via the browser. A centralized, secure, and clientless management solution.

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

Vagrant + KVM/Libvirt: How to Double Your VM Speed on Linux

Gitolite: Ultra-lightweight Git Server Management for 1GB RAM VPS

MongoDB + Python: From Basic CRUD to Advanced Aggregation with PyMongo

Guide to Using git-sizer: “Rescuing” Bloated and Sluggish Git Repositories

Process Python Data Like a Pro with Counter, defaultdict, and deque

VMware vSphere NIOC Configuration Guide: Eliminating Noisy Neighbors and Optimizing Bandwidth

Deploying Metabase with Docker: A Self-Service BI Solution to Replace Manual Data Extraction

Packaging Linux Applications: A Complete Guide to flatpak-builder on Fedora

MySQL 9.0 and VECTOR: Embedding Storage Solution for AI Apps Without a Secondary DB

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

Building Your Own S3-Compatible Object Storage with MinIO on Ubuntu Server

Teaching AI Agents Long-Term Memory with Mem0: A Solution for Python Developers

Mastering MergeKit: The Ultimate Trick to ‘Mix’ LLM Models Without Heavy GPUs

Centralized Server Management with Apache Guacamole on Ubuntu: RDP and SSH Directly in Your Browser