Can I use Google 2FA, Yubikey , DUO simultaneously?
How to use multiple 2fa?
Overview: This article describes on how to configure Authenticator applications (Google Authenticator, Microsoft Authenticator, etc.), YubiKey, and DUO Security together in the web panel, enabling SSH jump host users to authenticate using their preferred method, and providing flexibility if one device is unavailable.
Authenticator applications (Google Authenticator, Microsoft Authenticator, etc.), Yubikey, and DUO can be configured and set for use simultaneously in the web panel. The SSH jump host user can set all three 2FAs and can use any of them to authenticate depending on the user's choice.
If the User has forgotten to take his Yubikey device, then he can authenticate with the authenticator applications (Google Authenticator, Microsoft Authenticator, etc.) or DUO Security app installed on his phone and vice versa.