Linux For Hackers #4 - Mastering Linux Permissions

File permissions are at the core of Linux security. In this video, you’ll understand how permissions work, how hackers abuse misconfigurations, and why chmod, chown, and ownership matter during exploitation and system hardening. Permissions are the gatekeepers of Linux. Learn how to read, write, and execute bits to understand how hackers bypass security restrictions. Are you ready to master the Linux terminal and step into the world of Ethical Hacking and Cybersecurity? This playlist is a curated, step-by-step guide designed to take you from a complete beginner to a confident Linux power user. What you’ll learn in this series: --------------------------------------------------- ✅ Core Linux commands every hacker must know. ✅ Navigating the file system and managing permissions like a pro. ✅ Mastering the terminal and shell scripting for automation. ✅ Essential networking concepts for penetration testing. ✅ How to use Linux-based hacking tools (Kali Linux/Parrot OS). Whether you're preparing for the CompTIA PenTest+, CEH, or OSCP, or just starting your journey into cybersecurity, these 10 videos will give you the foundational skills needed to think and act like a hacker. Don’t just use the tools—understand the system. Hit play and start your Linux journey today! 🚀 Resources: --------------------------------------------------- Linux Notes: (https://github.com/brian0dayacademy-o...) Cyber Security Cheat-Sheet: (https://github.com/brian0dayacademy-o...) Timestamps: --------------------------------------------------- 00:00 - Introduction to Linux Permissions 00:23 - Checking permissions with 'ls -l' 01:28 - The three types of permissions: Read (r), Write (w), Execute (x) 02:22 - Permission categories: User/Owner, Group, and Others 03:32 - How to modify permissions using 'chmod' 04:08 - Method 1: Symbolic Mode (using letters u, g, o, a) 05:19 - Practical: Adding permissions with Symbolic Mode 06:36 - Practical: Revoking/Removing permissions with Symbolic Mode 08:08 - Giving permissions to everyone (a+x) 10:02 - Method 2: Numeric Mode (using octal numbers 4, 2, 1) 11:00 - Calculating numeric permissions (e.g., 755, 644) 12:26 - Practical: Assigning full permissions (777) vs restricted ones 14:18 - Practical: Revoking permissions using Numeric Mode (e.g., 600) 15:41 - Changing file ownership with the 'chown' command 17:35 - Using 'sudo' to change ownership of restricted files 18:08 - Changing group ownership for files 19:33 - Summary and Conclusion 📱 FOLLOW ME EVERYWHERE --------------------------------------------------- Linktree: (https://linktr.ee/brian0day) Twitter/X: (https://x.com/brian0day) Github: (https://github.com/brian0dayacademy-o...) Join our Discord Community: Join Here (  / discord  ) 💙 Support the Channel: --------------------------------------------------- If you found this video helpful, please like, subscribe, and click the notification bell to stay updated on more cybersecurity tutorials and hands-on guides. Linux for Hackers, Ethical Hacking 2026, Linux Terminal Tutorial, Cybersecurity Roadmap, Linux for Beginners, Pentesting Skills, Linux, open source, technology, TuxDigital, Tux Digital, file management, Copy Files in terminal, sudo rm -rf /, sudo, linux commands, Linux terminal, Beginner Linux tutorial, Command line basics, Linux CLI, Linux tips, Linux for beginners, Ubuntu commands, Shell commands, networkchuck, Bash tutorial, Command line tutorial, Learn Linux, Linux basics, Linux tutorial, Linux tricks, How to use Linux terminal, Linux help, Terminal basics, Getting started with Linux, New to Linux #LinuxForHackers #EthicalHacking #Cybersecurity #LinuxTerminal #KaliLinux #Pentesting #LearnToHack #InfoSec