When the YubiKey is shipped, its first configuration slot is factory programmed for the YubiCloud OTP service, and its second configuration slot is blank.– Īfter that try to connect to the server with ssh -v your_server. The second slot is used if the button is touched for between 2 and 5 seconds. The first slot is used to generate the passcode when the YubiKey button is touched for between 0.3 and 1.5 seconds and released. If you are already using a YubiKey with an existing service, the following steps will overwrite the stored secret for that service. A straight-forward description of what will happen to your key: Next, follow this guide to import the Yubikey to your DUO account. For the AuthenticationMethods, use this one: AuthenticationMethods publickey,password publickey,keyboard-interactive. Second, follow this official guide for setting up a Unix Application, for Unix authentications_:_. I came up with DUO lately and I tried to set it up with one of my server's authentication, and I thought I'd share with you!įirst of all, register a DUO account if you haven't.
I recently got a Yubikey 5c, and it has been fun and impressive to me. Set up DUO MFA with a Yubico Yubikey 5C on CentOS 8 Published at.
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