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