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Development tutorial - IT technology blog

Installing and Using Visual Studio Code on Linux: Real-World Tips & Tricks

By IT From Zero March 3, 2026

A detailed guide to installing Visual Studio Code on Ubuntu, Fedora, and Arch Linux — including settings.json configuration, essential extensions, and practical tips to boost your productivity from the very first day.

Git

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.

Building Your Own MCP Server with TypeScript: Connect AI Assistants to Internal Systems

Mastering TanStack Query v5 in React: Practical Server State Management, Caching, and Optimistic Updates

Installing ModSecurity v3 and OWASP CRS on Nginx Ubuntu: Building a Production-Ready Web Server WAF

Centralized Cloudflare Traffic and Security Monitoring with Cloudflare Exporter, Prometheus, and Grafana

Guide to E2B Code Interpreter with Python: Building a Secure Sandbox for AI Agents

A Guide to bpftrace and BCC on Fedora: Linux Performance Analysis and Diagnostics with eBPF

Optimizing Index Merge in MySQL: Understanding Intersection, Union, and Handling Optimizer Missteps

How to Create Systemd Services and Systemd Timers on Ubuntu: A Robust Crontab Alternative

Configuring the FEDERATED Storage Engine in MySQL: Connect and Query Remote Tables

SGLang on Linux Guide: Accelerate LLM Inference and Optimize RadixAttention for AI APIs

Installing and Using Visual Studio Code on Linux: Real-World Tips & Tricks

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