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Secure Headless Database Infrastructure Using VirtualBox

July 7th 2025

// Overview

This project demonstrates the setup of a secure, headless MySQL database hosted on a Linux Desktop VM within Oracle VirtualBox. The system is designed to prevent any direct local access, relying solely on a Linux Server VM to manage the database remotely via SSH key authentication. Security measures include disabling GUI and TTY logins, firewall rule enforcement, restricted sudo access, and SSH hardening. The result is a locked-down environment ideal for secure data handling and administrative isolation in virtualized lab environments.