1. What is DUO MFA?

It is an MFA (Multi-Factor Authentication) service provider.


2. Do we provide DUO as an official product?

Not really. We have enforced MFA (Multi-Factor Authentication) for all new Windows Server / VPS signups since April 2019 to create an extra server login protection.


3. Which DUO plan should you register?

Duo Free. Please refer to https://duo.com/pricing/duo-free. It is handled by technical team during server provision process. Kindly contact our support team if want to upgrade DUO plan.


4. Who will administer your Windows Server / VPS DUO account?

Our internal team.


5. Our setup process.

We require the phone number of the Windows Server / VPS client to register a Duo mobile account.


6. User DUO mobile enrolment process.

During the deployment of MFA, an SMS that contains the system generated URL to download the app using a mobile phone (supported on both Android/iOS) will be sent to the user. The user is required to install the app based on the link provided in the SMS. 


7. After login the Windows Server / VPS, the user can choose any of the following for authentication:

  • Duo Push

Tap ‘Approve’ on the push notification received on the phone seconds later to securely access the server.


  • Call Me

The user will receive a one-time passcode via a call from the system operator.


  • Passcode

Duo will send a one-time passcode via SMS that can be typed into a 2FA prompt.


**Limitation on the usage of Call Me and Passcode**

Each free account will be given 500 credits. Each Call Me costs 10 credits; each Passcode costs 5 credits for MFA authentication. Once credits are depleted, the user can only choose Duo Push for authentication. 


8. Can I not enrol?
Yes. Kindly inform our technical agent and we will assist to uninstall the application. However, please understand that the Windows Server / VPS will no longer be protected by MFA, which provides extra login protection using authentication. Without the MFA protection, the server will be vulnerable to login brute force.