Hardened MySQL Deployment

July 18th 2025

// Overview

This deployment was all about locking down a MySQL environment inside a private virtual network. I used a Remote Admin Server to handle all database management, with tight firewall rules allowing only necessary ports. MySQL connections were secured using SSL/TLS encryption, and system activity was monitored with Fail2Ban and Auditd to catch intrusions and log sensitive actions. A second server handled automated, encrypted backups, pulling data securely through an SSL tunnel. Everything stays off the public internet — internal-only communication is enforced end to end.