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Git bisect: Find the bug-causing commit fast with binary search

By IT From Zero March 3, 2026

Git bisect uses binary search to pinpoint exactly which commit introduced a bug — instead of manually checking each one, you only need about 6 tests for 47 commits. A step-by-step guide from the basics to full automation with scripts, plus a practical workflow drawn from real production projects.

Ubuntu

Installing LAMP Stack on Ubuntu 22.04 — A Step-by-Step Guide for Beginners

By IT From Zero March 3, 2026

A step-by-step guide to installing LAMP Stack (Apache, MySQL, PHP) on Ubuntu 22.04, including Virtual Host configuration, creating a secure database user, and verifying the full stack end-to-end. Perfect for developers who are new to deploying PHP applications on a server.

Artificial Intelligence tutorial - IT technology blog

AI Model Comparison 2026: GPT-5.2, Claude Opus 4.6 / Sonnet 4.6, and Gemini 3.1 Pro — Which One Should You Choose?

By IT From Zero March 3, 2026

A hands-on developer comparison of GPT-5.2, Claude Opus 4.6/Sonnet 4.6, and Gemini 3.1 Pro: each model's strengths, API call code examples, and how to route tasks to optimize costs.

Linux

Managing Processes with systemd on Linux: Practical Tips from the Trenches

By IT From Zero March 3, 2026

systemd is the default process manager on modern Linux. This article shares essential commands, how to create custom services, debug failures, and best practices from real-world server operations.

MySQL

MySQL User Management and Access Control: Tips & Tricks from Real-World Experience

By IT From Zero March 3, 2026

A practical guide to MySQL user management and access control following the Principle of Least Privilege — creating users, managing GRANT/REVOKE permissions, and setting up a solid foundation for production projects. Real-world tips and tricks to protect your database from unnecessary risk.

A Practical Guide to Using OpenAI API with Python: From Setup to Production

By IT From Zero March 3, 2026

A practical guide to using the OpenAI API with Python in a DevOps environment: proper setup, building a wrapper function with retry logic, streaming responses, parsing structured JSON output, and tracking token costs. Focused on common pitfalls and how to avoid them from the start.

Virtualization

KVM vs VirtualBox vs VMware: Choosing the Right Hypervisor for Your Use Case

By IT From Zero March 2, 2026

A comparison of KVM, VirtualBox, and VMware based on real benchmark performance, snapshots, networking, and guest integration — helping you choose the right hypervisor for each scenario: homelab, development, or production server.

How to Install ComfyUI for Local AI Image Generation

By IT From Zero March 2, 2026

A practical guide to installing ComfyUI locally for AI image generation with Stable Diffusion — covering GPU setup, model downloads, configuration, and real-world monitoring. Drawn from 8 months of hands-on use.

Linux

Install and Configure Nginx on Ubuntu 22.04: A Complete Web Server Guide from A to Z

By IT From Zero March 2, 2026

A step-by-step guide to installing and configuring Nginx on Ubuntu 22.04 with a quick-start structure — from the first command to virtual hosts, reverse proxy, and HTTPS. Includes practical tips on performance tuning, rate limiting, and zero-downtime reloads in production.

Centos

Installing and Configuring AlmaLinux as a CentOS Replacement: Real-World Experience

By IT From Zero March 2, 2026

A guide to installing AlmaLinux and migrating in-place from CentOS 7/8 to AlmaLinux without rebuilding servers. Compares AlmaLinux vs Rocky Linux vs Oracle Linux from a practical DevOps perspective, with basic post-install security configuration included.

Storybook 8 with React and Tailwind CSS: Building and Testing Isolated UI Components

How to Install and Use VMware PowerCLI: Automate Daily vSphere Health Checks

A Complete Guide to Docker Buildx for Multi-Platform Images (AMD64 & ARM64)

Multipass Guide: Spin Up an Ubuntu VM via CLI in Just 20 Seconds

Configuring PAM on Linux: Automatically Lock Accounts and Enforce Password Policies

Installing and Configuring a Samba Server on Linux: File Sharing and Proper Permissions for Windows Networks

Using tRPC in Full-Stack TypeScript Projects: End-to-End Type-Safe APIs Without Intermediate Schemas

Python Netmiko Guide: Automating Cisco, Juniper, and MikroTik Network Devices

Integrating Tailscale with Docker: Secure Multi-Cloud Networking Without Open Ports

Desktop GUI Automation with Python and PyAutoGUI: A Hands-on Guide

Git bisect: Find the bug-causing commit fast with binary search

Installing LAMP Stack on Ubuntu 22.04 — A Step-by-Step Guide for Beginners

AI Model Comparison 2026: GPT-5.2, Claude Opus 4.6 / Sonnet 4.6, and Gemini 3.1 Pro — Which One Should You Choose?

Managing Processes with systemd on Linux: Practical Tips from the Trenches

MySQL User Management and Access Control: Tips & Tricks from Real-World Experience

A Practical Guide to Using OpenAI API with Python: From Setup to Production

KVM vs VirtualBox vs VMware: Choosing the Right Hypervisor for Your Use Case

How to Install ComfyUI for Local AI Image Generation

Install and Configure Nginx on Ubuntu 22.04: A Complete Web Server Guide from A to Z

Installing and Configuring AlmaLinux as a CentOS Replacement: Real-World Experience