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Ansible Vault: Encrypting Secrets in Playbooks and Storing Them Safely in Git

By admin September 4, 2026

Hardcoding secrets in your Ansible Playbook and committing them to Git is the fastest way to lose a server. This article compares 4 approaches to managing secrets in Ansible — from env vars to HashiCorp Vault — and walks through implementing Ansible Vault step by step: the built-in, free solution that's secure enough for most teams.

MySQL

How to Find and Remove Unused Indexes in MySQL: Reclaim Disk Space and Speed Up Writes

By admin September 4, 2026

Unused indexes in MySQL don't just waste disk space — they slow down every write operation. This guide walks through how to safely identify and remove them using performance_schema and the sys schema, complete with a pre-drop checklist and an automated monitoring script.

Development

Riverpod in Flutter: Professional State Management from Basic Provider to Riverpod Generator

By admin September 4, 2026

A hands-on guide to Riverpod 2.x in Flutter: from StateProvider, FutureProvider, and NotifierProvider to Riverpod Generator. Covers testing tips, provider overriding, and real-world experience organizing code by feature.

Virtualization

Stopping the ‘Noisy Neighbor’: How to Effectively Limit Disk I/O on Proxmox & KVM

By admin September 4, 2026

Don't let a single virtual machine slow down your entire system. Learn how to limit IOPS and Bandwidth on Proxmox/KVM to eliminate the Noisy Neighbor problem for good.

Python

ZeroMQ (pyzmq) and Python: Building Ultra-Fast Brokerless Communication Systems

By admin September 4, 2026

Forget bulky Message Brokers. Learn how to use ZeroMQ (pyzmq) with Python to build decentralized systems with low latency and extreme scalability.

Network

Optimizing MTU, Jumbo Frames, and MSS Clamping: The Secret to Fixing Slow Networks and Lag on Linux

By admin September 4, 2026

Slow network despite high bandwidth? Learn how to optimize MTU, Jumbo Frames, and MSS Clamping on Linux to fix packet fragmentation and boost performance.

Python

Practical Python Security: Don’t Expose Passwords by Misusing Hashlib

By admin September 4, 2026

Avoid exposing user passwords due to basic mistakes. Learn how to use hashlib (PBKDF2), secrets, and HMAC in Python for expert-level application security.

Development

Hexagonal Architecture in Go: Don’t Let Infrastructure “Strangle” Your Business Logic

By admin September 4, 2026

Completely decouple Business Logic from Infrastructure in Go using Hexagonal Architecture. A detailed implementation guide for more maintainable and testable projects.

Development

Angular 18: Say Goodbye to NgModule, Accelerate Apps with Signals and Zoneless

By admin September 4, 2026

A detailed guide to building Angular 18 apps with Standalone Components and Signals. Learn how to remove Zone.js to boost rendering speed and optimize bundle size.

Virtualization

Mastering bhyve on FreeBSD: The Lightweight Yet Powerful Hypervisor

By admin September 4, 2026

Skip bulky virtualization solutions; bhyve on FreeBSD offers near bare-metal performance. This guide helps you deploy Linux/Windows VMs professionally using vm-bhyve.