Logging Into Microsoft Windows
The default option for Duo RDP is auto push.
After entering your Microsoft Windows username and password, an authentication prompt will automatically be pushed to the Duo Mobile app on your phone.
If auto push is not enabled for your Duo RDP install, or if you click the "Cancel" button on the auto push window, you will see a Duo Security dialog that lets you tell Duo how you want to authenticate.
|A passcode||Log in using a passcode, either generated with Duo Mobile, sent via SMS, generated by your hardware token, or provided by an administrator.
Examples: "123456" or "1456789"
|push||Push a login request to your phone (if you have Duo Mobile installed and activated on your iPhone, Android, Windows Phone, or BlackBerry device). Just review the request and tap "Approve" to log in.|
|phone||Authenticate via phone callback.|
|sms||Get a new batch of SMS passcodes.
Your login attempt will fail — log in again with one of your new passcodes.
You can also add a number to the end of these factor names if you have more than one device registered. For example, push2 will send a login request to your second phone, phone3 will call your third phone, etc.