Name resolution

Ensure that the all nodes can resolve other node(s).

Preferably this should be done through DNS, alternatively through adding the addresses to the local hosts file

/etc/hosts

192.168.120.200 os-monitor os-monitor-1 os-monitor.rhmlab.local os-monitor-1.rhmlab.local
192.168.120.201 os-control os-control os-control-1.rhmlab.local os-control-1.rhmlab.local

192.168.120.211 os-node-1 os-node-1.rhmlab.local
192.168.120.212 os-node-2 os-node-2.rhmlab.local
192.168.120.213 os-node-3 os-node-3.rhmlab.local