Important CLI commands

• ssh-keygen - generate new ssh-key
• ssh-copy-id [ip-address] - copy ssh-key to target host
• ansible -m ping all - ping all hosts defined in the ansible hosts file
• ansible -m shell -a 'hostname' all - execute a command in bash on all hosts
• ansible-playbook [playbook-name] - execute the given playbook

Keys are added to ~/.ssh/known_hosts