In this step we connect to servera as operator3 to demonstrate that password based authentication is disabled. However, due to the 50-cloud-init.conf file in /etc/ssh/sshd.config.d directory, the configuration does not work.

The same issue happens on the EoC lab (
Configure and Secure SSH)

Please refer to this post for a possible solution: https://learn.redhat.com/t5/Red-Hat-Instructor-Discussions/RH124-etc-resolv-conf-issue/m-p/45159#M5783