Tutorials

Step-by-step technical guides on Docker, Linux, Python, Go, and more.

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8 min readBeginner

Teaching AI Literacy to Students — A Practical Classroom Framework for 2026

A practical framework for teaching AI literacy across K-12 and university — age-appropriate activities, free resources, and assessment approaches for 2026.

9 min readAdvanced

esxcli hardware pci pcipassthru list — ESXi PCI Passthrough CLI Guide

Enable VMware ESXi PCI passthrough using esxcli hardware pci pcipassthru list and esxcli hardware pci pcipassthru enable. No GUI required. Includes verification and reboot steps.

8 min readAdvanced

SSH Tunneling on AIX: Port Forwarding Guide [With Examples]

Learn SSH tunneling and port forwarding on AIX. Local forwarding, remote forwarding, dynamic SOCKS proxy, and practical examples for secure access.

9 min readIntermediate

How to Blacklist Nouveau NVIDIA Driver in 2026 (Ubuntu, Arch, Fedora, Rocky Linux)

Updated 2026: Blacklist the Nouveau NVIDIA driver on Ubuntu, Arch, Fedora, Rocky Linux, and openSUSE. Includes distro-specific initramfs commands, GRUB fallback method, Secure Boot warning, and steps to verify with lsmod and install NVIDIA drivers.

22 min readBeginner

Flask API POST Request: Complete Guide to Handling POST Data

Learn how to handle POST requests in Flask. This tutorial covers receiving JSON, form data, file uploads, validation, building REST APIs, and advanced Domain-Driven Design (DDD) architecture patterns.

7 min readBeginner

SCP and SFTP on AIX: Secure File Transfer Guide [Examples]

Complete guide to SCP and SFTP file transfer on AIX. Learn secure copy commands, SFTP usage, batch transfers, and troubleshooting tips.

9 min readIntermediate

AIX SSH Configuration: Complete Setup Guide [AIX 7.x]

Complete guide to SSH configuration on AIX 7.x. Enable SSH, configure sshd, set up key-based authentication, PAM, troubleshooting, and security hardening.

10 min readIntermediate

Docker daemon.json Complete Guide — All Options with Examples (2026)

Complete Docker daemon.json reference 2026. All options: log-driver, storage-driver, insecure-registries, live-restore, exec-opts, DNS, proxies. File location on Linux, Windows, macOS.

6 min readBeginner

Python Convert Int to String: 6 Methods with Examples

Learn how to convert an integer to a string in Python using str(), f-strings, format(), and more. Includes performance comparison and edge cases.

9 min readIntermediate

How to Restart SSH in AIX: startsrc, stopsrc, lssrc Commands

Restart SSH daemon in IBM AIX using startsrc -s sshd, stopsrc -s sshd, and lssrc -s sshd. Covers AIX 6.1, 7.1, 7.2, 7.3. Includes refresh and forced restart with examples.