su -

yum install -y epel-release

yum install -y ansible

yum install -y tree git

ansible-doc -l

ansible-doc -l | wc -l

From Ansible machine's terminal

ssh [email protected]

Once you have logged in as 'ansible' user, you may then switch to root user as shown below

su -

You may now paste the Ansible root user's public key into the /root/.ssh/authorized_keys

As root user, you may edit the file /etc/ssh/sshd_config

Look for PermitRootLogin prohibit-password, replace the prohibit-password with yes as shown below

PermitRootLogin  yes

You may now edit /etc/ssh/sshd file and look for pattern "session required pam_loginuid.so" and replace with "session optional pam_loginuid.so"