DNS name usage is required when installing ZENworks Server Management, except that Management and Monitoring Services does not require DNS.
If you do not have DNS in use for the servers where you want to install the Server Management software (Policy and Distribution Services, Server Inventory, and Remote Management), see Section D.0, Ensuring Successful DNS Name Resolution for information on setting it up.
If DNS is in use on your network, you must have a DNS name server that can perform both forward and reverse hostname resolution for all servers where ZENworks Server Management components are installed. For more information, see Section D.0, Ensuring Successful DNS Name Resolution.