> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zylon.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Security overview

> Guides for securing and hardening your Zylon server against unauthorized access and network exposure

Instance hardening covers the practices and configurations that reduce the attack surface of your Zylon deployment.
Apply these guides after installation to strengthen your server's security posture.

## Topics

<CardGroup cols={2}>
  <Card title="Airgap Your Server" icon="shield" href="/en/operator-manual/instance-hardening/airgap-your-server">
    Restrict inbound and outbound network traffic using UFW firewall rules to isolate your Zylon instance.
  </Card>

  <Card title="Disk Encryption" icon="lock" href="/en/operator-manual/instance-hardening/disk-encryption">
    Encrypt your server's disk with LUKS to protect data at rest, whether setting up a clean machine or securing an existing Zylon installation.
  </Card>
</CardGroup>