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• Scan your system for open ports and vulnerabilities
• Setup 2FA on Ubuntu Jammy console and ssh access REMEMBER TO GENERATE 2FA CODES FOR ALL USERS IN YOUR SYSTEM BEFORE ENABLING 2FA. YOU WILL NOT BE ABLE TO LOGIN TO ACCOUNTS UNTIL THEN.

System Configuration/Hardening Notes

Specific use-cases

• RPCBIND
• FWCLOUD (runs using node.js)
• DHCP
• MariaDB
• GLANCES
• FAIL2BAN

How Fail2Ban Works to Protect Services on a Linux Server | DigitalOcean

Additional Notes

Here are some additional notes that can help you to improve the security of your Linux server: