if you are logged in as a different user, because it will not issue ``sudo``
commands needed on the remote host.
-.. topic:: Disable ``requiretty``
-
- On some distributions (e.g., CentOS), you may receive an error while trying
- to execute ``ceph-deploy`` commands. If ``requiretty`` is set
- by default, disable it by executing ``sudo visudo`` and locate the
- ``Defaults requiretty`` setting. Change it to ``Defaults:ceph !requiretty`` to
- ensure that ``ceph-deploy`` can connect using the ``ceph`` user and execute
- commands with ``sudo``.
Create a Cluster
================