Module: Linux Essentials
 Filesystem layout, users/groups, permissions
 Core commands: ls, cd, cp, mv, rm, cat, less, grep, find, chmod/chown etc.
 Shell basics: pipes, redirects, quoting, simple scripts
Module: Networking & VPN Basics
 OSI and TCP/IP fundamentals, ports and protocols
 DNS and HTTP/S request–response flow
 VPN/OpenVPN concepts
Module: Cryptography Basics
 Primitives: symmetric, asymmetric, hashing
Module: Web Hacking Fundamentals
 App architecture: client/server, cookies, sessions, CSRF tokens (concepts)
 SQL Injection
 Cross-Site Scripting
 Remote Code Execution
 Local File Inclusion / Path Traversal
 HTML Injection
Module: Content Discovery
 Purpose, scope, and rules of engagement
 Public clues: indexing, headers, robots.txt, error messages
 Methodologies with wordlists
Module: Burp Suite Essentials
 Proxy setup
 Repeater for request analysis;
 Safe interception
Module: Metasploit Framework Fundamentals
 Components: modules, payloads, auxiliaries
 Reconnaissance and scanner modules
Module: Wireless Security Basics (aircrack-ng overview)
 802.11 fundamentals
 Aircrack-ng suite
Module: Malware Threats (Theory Only)
 Taxonomy: viruses, worms, trojans, ransomware, spyware, bots etc.
Module: VulnHub Practice (Pwning Vulnerable Machines)
 Pwn several intentionally vulnerable/CTF style VMs