A simple and effective Python script that performs basic security hardening checks on CentOS systems.
🔎 Useful for sysadmins, ethical hackers, DevSecOps learners, and beginners in Linux security.
- 🔥 Checks if firewalld is active
- 🌐 Lists open ports using
ss - 🔒 Verifies if SSH root login is disabled
- 🚫 Disables guest login (for GDM/GUI users)
- 📜 Displays failed SSH login attempts