Spent the afternoon hardening the new production server. SSH lockdown, automated offsite backups with encryption, OS-level security updates on autopilot, WAF verified active, HSTS on all domains, database tuned, and external uptime monitoring watching everything at 5-minute intervals. Also wired up server-side resource alerts. Went from 'Plesk is installed' to 'production-ready' in one session. The old CentOS box is looking more disposable by the day.