I’m new to Duo and looking to understand it.
I’ve followed the instructions at Duo Unix - 2FA for SSH with PAM Support (pam_duo) | Duo Security
I’ve successfully integrated with Ubuntu for both a local privileged access and via SSH.
However, when attempting similar with CentOS 7.x, I keep running into an issue. The local console privileged access works as expected with the Duo options. When I attempt to connect via SSH using PuTTY with Windows, I get the error “Disconnected: No supported authentication methods available (server sent: publickey)”