I'm trying to turn off password authentication for SSH after setting up public key access. I have these set in my /etc/ssh/sshd_config file:

PermitRootLogin without-password
PasswordAuthentication no
ChallengeResponseAuthentication no

However, it still lets me login with a password.

I forgot to restart sshd, so it wasn't using the new settings. This fixed it:

/etc/rc.d/sshd restart

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