Authentication Domain tab for the client
Select the NetBackup client in the host properties. It can be used to control which systems require or prohibit the use of NetBackup Product Authentication and Authorization on a per-machine basis. Note that both systems must have matching settings to communicate.
Within the Access Control host properties, on the Authentication Domain tab, add the list of domains a client can use to authenticate. You can click to get a list of available authentication domains. Then, click to create a list of selected authentication domains.