Edit the ``/etc/hosts`` file to contain the following:

.. code-block:: none

   # controller
   10.0.0.11       controller

   # compute1
   10.0.0.31       compute1

   # block1
   10.0.0.41       block1

   # object1
   10.0.0.51       object1

   # object2
   10.0.0.52       object2