Re:How to Secure a Linux Server
by bpye on Saturday February 16, 2019 @07:30PM
(#19181865)
If you have an NFC YubiKey and an Android phone with NFC then the Yubico Authenticator is pretty awesome. You can store your OTP tokens on your YubiKey. Also open source.
https://github.com/Yubico/yubioath-android