Hello,
I'm looking for a solution to use my tokens (FIDO U2F SECURITY KEY) as a second authentication on OpenVPN. I have not found any documentation on the internet, only focused on the use of tokens (UBIKEY 4 Yubikey 4 NANO Yubikey NEO) the FIDO U2F SECURITY KEY token is not supported for this type of solution?
For knowledge did a lab where I use OpenOTP + OpenVPN AS, but with authentication via Google Autenticator. It works 100%.
Best Regards
Cícero Ronaldo