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MojaLab shares tutorials, examples, and discoveries in coding, AI, and system administration for tech enthusiasts, sysadmins, and beginners.

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MojaLab - Discover, Learn, and Share Tech © 2025
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An AI Adventure in SMS message Classification

An AI Adventure in SMS message Classification

A fun and practical project that uses Python and AI to classify SMS replies like “Yes”, “Maybe later”, or “Stop”. From keywords to embeddings to GPT, follow the journey of building a multilingual intent classifier that goes way beyond Excel hacks. »

Getting Started with OpenAI Agents SDK - Building a Simple Travel Agent

Getting Started with OpenAI Agents SDK - Building a Simple Travel Agent

In this post, we explore how to build a smart travel assistant using the OpenAI Agents SDK. With just a few tools and guardrails, we created an agent that fetches weather, finds places to visit, and gives real-time travel tips — all in one Markdown-friendly reply. »

Spring Equinox 2025: An AI-Assisted Animated Journey into the First Day of Spring

Spring Equinox 2025: An AI-Assisted Animated Journey into the First Day of Spring

I teamed up with AI (GPT and Gemini) to create an animation explaining the Spring Equinox 2025! See how Earth's orbit and tilt bring us the first day of spring. »

Staying Updated on AI Developments

Staying Updated on AI Developments

Staying updated on AI is easier with the right mix—research papers, newsletters, communities, and hands-on projects. This guide covers practical ways to keep up with AI trends. Plus, MojaLab’s AI tutorials are coming soon! »

Introduction to WebSockets and Socket.IO

Introduction to WebSockets and Socket.IO

Learn how to build a real-time multiplayer Snake game using WebSockets and Flask-SocketIO! This tutorial guides you through setting up a backend with Flask, serving the frontend with Nginx, and deploying everything with Docker. »

Fail2Ban Tutorial: Protect Your Server from Brute-Force Attacks

Fail2Ban Tutorial: Protect Your Server from Brute-Force Attacks

Fail2Ban protects your server from brute-force attacks by detecting repeated failed login attempts and blocking malicious IPs. By the end, you’ll have an automated defense system keeping intruders at bay. »

How to Easily Find Your Public IP Address (also) from the Command Line

How to Easily Find Your Public IP Address (also) from the Command Line

Learn how to find your public IP address using command-line tools on Linux, macOS, and Windows. Skip the browser, bypass privacy quirks, and get accurate results in seconds! »

Understanding Cookies: A Simple Guide to Web Sessions and Security

Understanding Cookies: A Simple Guide to Web Sessions and Security

Cookies and CORS are essential for secure cross-domain interactions. Cookies manage sessions, while CORS controls resource sharing across domains. Proper configuration of both ensures seamless and secure web application functionality. »

Simplify Your Terminal Workflow with TLDR

Simplify Your Terminal Workflow with TLDR

Discover TLDR, the amazing, super-simple and super-powerful cheat sheet! Whether you're troubleshooting or learning, TLDR is the perfect tool for navigating the vast IT playground! »

Linux Sudoers Explained: Add a User in Seconds!

Linux Sudoers Explained: Add a User in Seconds!

Learn how to quickly add a user to the sudoers file in Linux. This short guide covers everything you need to grant administrative privileges in just a few steps. »

MariaDB Master-Slave

MariaDB Master-Slave

Learn how to configure a MariaDB Master-Slave Cluster using Docker Compose. Perfect for beginners. »

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MojaLab - Discover, Learn, and Share Tech © 2025
Published with Ghost and Paperleaf