~~TOC~~
Prerequisites:
yum install ansible
or
# yum install python-setuptools $ git clone git://github.com/ansible/ansible.git $ cd ./ansible $ make rpm $ sudo yum localinstall ~/rpmbuild/ansible-*.noarch.rpm
192.168.1.50 aserver.example.org bserver.example.org
$ ssh-agent bash $ ssh-add ~/.ssh/id_rsa
ansible all -m ping