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Dockerize Spring Boot: From 800MB ‘Giant’ to 150MB and the Ultimate Trick to Fix OOM

By admin April 20, 2026

Learn advanced Spring Boot Dockerization: Reduce image size from 800MB to 150MB and use smart JVM configuration to eliminate OOM errors in production.

Virtualization

Installing Windows 11 on KVM/Proxmox: The Best Way to Emulate TPM 2.0 and Secure Boot

By admin April 20, 2026

Installing Windows 11 on Proxmox/KVM often fails due to hardware incompatibility. Learn how to emulate TPM 2.0 and Secure Boot for a proper setup with full updates.

Python

Automating Image Processing with Pillow: Tips for Compressing and Watermarking Thousands of Files

By admin April 20, 2026

Learn to automate image processing with Pillow in Python: from distortion-free resizing and watermarking to compression techniques that reduce file size by 70% for SEO.

Artificial Intelligence tutorial - IT technology blog

Optimizing Workflows with Custom Slash Commands in Claude Code

By admin April 20, 2026

A guide to setting up Custom Slash Commands in Claude Code to automate code reviews, testing, and refactoring, helping developers save time on manual prompting.

Evaluating RAG with RAGAS: From ‘Gut Feeling’ to Faithfulness, Answer Relevance, and Context Precision Metrics

By admin April 20, 2026

Stop evaluating AI chatbots based on gut feeling. Use RAGAS to accurately measure Faithfulness, Answer Relevance, and Context Precision.

What is an MCP Server? How to Connect Claude to a Database in Seconds

By admin April 20, 2026

A detailed guide on building an MCP Server to connect Claude AI with databases (SQLite, PostgreSQL). Enable AI to query data directly, safely, and professionally.

LLM Security: Using Microsoft Presidio to Sanitize Sensitive Data (PII) Before API Calls

By admin April 20, 2026

Stop sending sensitive data directly to OpenAI. A detailed guide on using Microsoft Presidio to automatically anonymize PII, helping AI apps comply with GDPR and local data laws.

Creating Custom Skills for Claude Code: Don’t Let AI Be a “Stranger” in Your Project

By admin April 20, 2026

Teach Claude Code to understand your project using Custom Skills. A detailed guide on automating debugging, security scanning, and optimizing real-world workflows for developers.

MySQL

MySQL Event Scheduler: Automating Your Database to End Late-Night Maintenance

By admin April 19, 2026

Stop wasting time on manual database maintenance. Discover how to use MySQL Event Scheduler to automate log cleanup and professionally optimize performance.

Database

Installing and Using Neo4j: When SQL “Gives Up” on Complex Relationships

By admin April 19, 2026

Stop struggling with complex SQL JOINs. Learn how to install Neo4j with Docker, optimize RAM, and use Python to build a friend recommendation system in just a few lines of code.

Configuring Multi-WAN Failover on Linux: A “Never-Down” Internet Solution with Keepalived

Podman Auto-update on Fedora: Automating Containers the Native Way

Installing MinIO on CentOS Stream 9: Build Your Own S3 Storage with SELinux and Firewalld

Installing Grafana on CentOS Stream 9: Professional Server Monitoring with Prometheus

SSH Bastion Host (Jump Server) Configuration Guide: A Secure Gateway for Linux Systems

Goodbye Cron Jobs: Building Durable Workflows with Temporal.io in Node.js

Goodbye Passwords: Implementing Passkeys (WebAuthn) with Node.js and SimpleWebAuthn

Installing Virtualmin on Ubuntu 22.04: A ‘$0’ Multi-Domain Hosting Management Solution

Mastering OpenSSL: From Creating Self-Signed Certs to ‘Lightning-Fast’ TLS Debugging

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

Dockerize Spring Boot: From 800MB ‘Giant’ to 150MB and the Ultimate Trick to Fix OOM

Installing Windows 11 on KVM/Proxmox: The Best Way to Emulate TPM 2.0 and Secure Boot

Automating Image Processing with Pillow: Tips for Compressing and Watermarking Thousands of Files

Optimizing Workflows with Custom Slash Commands in Claude Code

Evaluating RAG with RAGAS: From ‘Gut Feeling’ to Faithfulness, Answer Relevance, and Context Precision Metrics

What is an MCP Server? How to Connect Claude to a Database in Seconds

LLM Security: Using Microsoft Presidio to Sanitize Sensitive Data (PII) Before API Calls

Creating Custom Skills for Claude Code: Don’t Let AI Be a “Stranger” in Your Project

MySQL Event Scheduler: Automating Your Database to End Late-Night Maintenance

Installing and Using Neo4j: When SQL “Gives Up” on Complex Relationships