127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

10.0.0.11   ceph-mon-1
10.0.0.12   ceph-mon-2
10.0.0.13   ceph-mon-3
10.0.0.21   ceph-osd-1
10.0.0.22   ceph-osd-2
10.0.0.23   ceph-osd-3
10.0.0.24   ceph-osd-4
