I got a Yubikey 4 half a year ago (during Red Hat Summit 2016), but until now I didn’t do much with it. Time to change that ;)
- Activate U2F on the services that support it
- Upload my GPG key into the Yubikey (my public key is here)
- Configure it as a second factor for SSH connections
- Configure it as a login token for my Linux machines.
- Configure it as a login token for my Windows machines (although I might wait for Windows Hello integration)
- Change my OTP generator from Google Authenticator to the Yubico Authenticator (also purchased a Yubikey Neo with NFC support as a backup key)
If you have any more ideas on how to use the Yubikey, feel free to comment!
Also, If you’re not using 2 factor authentication yet, I urge you to start using it. It gives you a nice additional layer of account security, with limited hassle. It doesn’t even have to cost you any money, if you’re using a software solution. Checkout twofactorauth.org for a (non-comprehensive) list of sites that support it!