GRUB Password in Linux | Secure Bootloader Step-by-Step (RHEL / CentOS / Rocky)

🔐 Want to secure your Linux system from unauthorized boot access? In this video, I’ll show you how to configure a GRUB password in Linux step by step. This is a complete hands-on guide covering: ✅ What is GRUB and why it is critical for Linux security ✅ How GRUB password works internally ✅ Creating GRUB PBKDF2 encrypted password ✅ Understanding /etc/default/grub, /etc/grub.d/, and grub.cfg ✅ Why GRUB does NOT ask password during normal boot ✅ How to verify GRUB password configuration correctly ✅ Best practices for GRUB hardening in production systems 📌 Supported OS: • RHEL 7 / 8 / 9 • CentOS • Rocky Linux • AlmaLinux 🎯 Who should watch this video? • Linux Administrators (L1 / L2 / L3) • RHCSA / RHCE aspirants • DevOps Engineers • System Security Engineers • IT Professionals preparing for interviews ⚠️ This is a REAL production-level explanation — not just commands, but internal file flow. 👍 If this video helps you, LIKE 👍, SHARE 🔁, and SUBSCRIBE 🔔 for more Linux & OpenShift tutorials. 📢 Comment below if you want videos on: • Linux Hardening • SELinux • OpenShift Security • GRUB Troubleshooting #Linux #GRUB #LinuxSecurity #GRUBPassword #LinuxAdministration #RHCSA #RHCE #DevOps #SystemHardening #RedHat #CentOS #RockyLinux #AlmaLinux #Bootloader #CyberSecurity