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

# Firewall

> Enable the built-in operating system firewall on macOS and Windows devices to block unauthorized inbound network connections.

## Platform compatibility

| macOS | Windows | Linux | iOS / iPadOS | Android |
| ----- | ------- | ----- | ------------ | ------- |
| ✅     | ✅       |       |              |         |

## How to set it up

<Steps>
  <Step title="Select targeting">
    No additional configuration is required. Choose which devices to apply the control to: all devices, specific device groups, or a custom target.
  </Step>
</Steps>

## Modify or remove the control

Disable the control from the profile settings. Disabling stops enforcement but does not remove existing configurations from devices.

## How it works

Primo enables the built-in firewall on targeted devices via MDM. The firewall blocks unsolicited inbound connections while allowing outbound traffic. No additional configuration is required — enabling the control is sufficient to protect devices on both macOS and Windows.