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Programming, coding and tech related tutorials

chmod and file permissions explained with octal chart

Master Linux file permissions and chmod with an easy octal chart, clear math breakdowns, and 5 practical real-world terminal scenarios.
By Asahluma Tyika
Posted on October 1, 2026

Understanding File Permissions in Linux [Read More]
Tags:
- Linux
- Terminal
- Beginner
SSH keys and config: stop typing passwords

Learn how to generate SSH keys, add them to GitHub, and configure ~/.ssh/config so you never type a password again.
By Asahluma Tyika
Posted on September 30, 2026

Introduction – why SSH keys matter [Read More]
Tags:
Docker in 15 minutes: images vs containers vs volumes

Master Docker fundamentals in 15 minutes: clear mental models, practical diagrams, and hands-on commands for images, containers, and volumes.
By Asahluma Tyika
Posted on September 30, 2026

Stop guessing how Docker actually works [Read More]
Tags:
- Docker
- DevOps
- Beginner
Python virtual environments explained: venv vs conda vs uv

Learn when to use Python's built‑in venv, Conda, or the ultra‑fast uv for clean, reproducible projects.
By Asahluma Tyika
Posted on September 29, 2026

Introduction – What’s a virtual environment and why you need one When you write Python code you’re not just writing a single script; you’re pulling in libraries, tools, and sometimes different versions of the same library. Installing everything globally (i.e., with pip install straight into your system Python) quickly turns... [Read More]
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How HTTP status codes actually work (with curl demos)

Learn how HTTP status codes work by using curl against httpbin.org, complete with diagrams, scripts, and troubleshooting tips.
By Asahluma Tyika
Posted on September 29, 2026

Introduction: What HTTP Status Codes Are and Why You Should Care [Read More]
Tags:
- Networking
- API
- Beginner