### Using RADIUS The below diagram shows a typical Parallels Remote Application Server scenario with Parallels Publishing agent connected to a Radius server. To configure Radius properties: In the Parallels RAS Console, navigate to the Connection > Second Level Authentication tab. In the Provider drop-down list, select Radius. Click the Settings button. The Radius Properties dialog opens. In the Server field, enter the hostname or IP address of the Radius Server. In the Port field, enter the port number for the Radius Server. In the Timeout field, specify the packet timeout in seconds. In the Retries field, specify the number of retries when attempting to establish a connection. Type the Secret Key and specify the Password Encoding, either PAP (Password Authentication Protocol) or CHAP (Challenge Handshake Authentication Protocol), according to the setting specified on the Radius Server. Click OK when done. Click the Check connection button to validate the connection. If the connection is configured correctly, you will see a confirmation message. If your Radius vendor requires specific attributes, click the Attribute tab and then select Add. In the Vendor drop-down list, select the vendor. In the Attribute list, select the vendor attribute. In the Value field, enter the value for the selected attribute type (numeric, string, IP address, date, etc).