Firewall Overview and Management

The firewall is your server's most important line of defense. It controls which network traffic reaches and leaves your server. We offer configuration guides for daily security (Hardening) and for emergencies (Troubleshooting).

Use the firewall software on your server to harden access, close ports, and implement rate limiting against DoS attacks.

If a misconfigured firewall prevents you from accessing your server (e.g., via SSH or RDP), you can disable it through a rescue environment.