# Using RADIUS

The below diagram shows the double hop perimeter network scenario with RAS Connection Broker connected to a RADIUS server (RADIUS is located in Intranet but it can be placed in DMZ).

<figure><img src="https://download.parallels.com/ras/v19/docs/en_US/Parallels-RAS-19-Administrators-Guide/diagramradius.png" alt=""><figcaption></figcaption></figure>

To configure RADIUS properties:

1. In the Parallels RAS Console, navigate to **Connection > Multi-factor authentication**.
2. Double-click the MFA provider that you want to configure.

Read on to learn how to configure RADIUS provider settings.


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