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

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