Changes
→U2F (Universal Second Factor) with Duo 2FA (Yubikey NEO and 4 only)
To use U2F on the yubikey, one must first enable U2F mode (only supported on NEO and 4). The U2F-only yubikey already supports U2F out of the box
From the yubikey [https://www.archlinux.org/packages/community/x86_64/yubikey-personalization/ personalization client ] man page:
'''YubiKey Neo only'''
The <code> -m </code> flag applies to the yubikey 4 as well. Use this to enable U2F. I do not know if U2F is supported over NFC for the NEO
For Duo, U2F devices can be self-registered, however it only can be used on Chrome.See the [https://wiki.archlinux.org/index.php/Yubikey#Enabling_U2F_in_the_browser Arch Wiki]
== External links ==