Disable ssh password authentication on High Sierra I want to disable password auth - ie keys only - on SSH. I've done this many times on Linux variants, and some searching here suggests it's the same on Mac, ie:

/etc/ssh/sshd_config


Then add/edit:

PasswordAuthentication no


However, this seems to have no effect - ie I can still log in with a password. Is there any different trick to do this on High Sierra?
For High Sierra, to prevent authentication without publickey, in the /etc/ssh/sshd_config file, set

PasswordAuthentication no
UsePAM no


To restart sshd (which is required to have it reread the config file), use

sudo launchctl stop com.openssh.sshd
sudo launchctl start com.openssh.sshd