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Programming, coding and tech related tutorials

How DNS works: from domain to IP with dig

A step‑by‑step guide that shows how a domain name becomes an IP address, using dig to watch every DNS hop.
By Asahluma Tyika
Posted on October 2, 2026

How DNS works: from domain to IP with dig Tags: Networking, Linux [Read More]
Tags:
- Networking
- Linux
Python list comprehensions vs loops: when to use which

Compare Python list comprehensions and loops with real benchmarks and readability tips, then decide which to use in your code.
By Asahluma Tyika
Posted on October 1, 2026

Python list comprehensions vs loops: when to use which Tags: Python, Programming [Read More]
Tags:
- Python
- Programming
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

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