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Learn the Docker commands developers use most often to build images, run containers, inspect applications, manage images, view logs, and clean up unused resources.

AI coding agents can now do much more than autocomplete code. Learn how to use them for planning, implementation, testing, debugging, and code review while keeping developers in control of quality and security.

Learn how to use Wireshark to capture and analyze network traffic. Understand packets, protocols, display filters, TCP conversations, DNS requests, HTTP traffic, and a practical troubleshooting workflow.

Learn how npm manages JavaScript project dependencies, scripts, versions, and lockfiles. Build a practical Node.js project and understand package.json, npm install, npm scripts, devDependencies, and package-lock.json.

Learn how Nmap port scanning works by running practical scans against a local machine and an authorized test target. Understand open, closed, and filtered ports, service detection, useful scan options, and how to turn Nmap output into actionable security information.

Already have a Node.js API and wondering whether it can run without a traditional server? Learn how to move a small API endpoint to AWS Lambda, expose it through API Gateway, handle environment variables, structure the handler, and avoid common serverless mistakes.