Scenario: Patching run yum update using Ansible to RHEL 6/7 remote machine System: RHEL 7, Ansible 2.6 (Callback and ansible log is active) Remote System: RHEL 6/7 (not using ssh key), same root password.
Example yum update host group devservers , here my steps: 1) Empty ansible log. # cat /dev/null > /var/log/ansible.log
2) Input hosts devservers in /etc/ansible/hosts # vi /etc/ansible/hosts