Found this channel is really good at explaining stuff like HTTP Query https://youtube.com/shorts/_aufOtwaFYQ?si=iUOc-toPkkjnPWwa

This video will show you how to build a hacking lab, with only 1 laptop or PC.

Throughout this hands-on ethical hacking crash course, you will learn the core Linux fundamentals and essential command-line tools needed to navigate and audit target systems effectively. From network scanning and web enumeration with tools like Nmap, Dirsearch, and Burp Suite, to exploiting vulnerabilities and writing your own automation scripts, you will gain practical, real-world skills. Everything is demonstrated safely and legally inside a local CTF lab environment, so you can dive right in and get started.

A simple explanation of how Nmap works.

Reconnaissance is the first phase of an attack or pentest, where you gather information about a target (its systems, people, and weak points) before trying to break in. This is what you'll learn in this video: - Intro To Reconnaissance. - Understanding Domain Levels. - Planning The Automation Workflow. - Setting Up The Environment. - Gathering Initial Subdomains. - Filtering For Third Level Domains. - Iterative Subdomain Discovery. - Probing For Live Hosts. - Scanning For Open Ports. - Running Visual Inspection.