To restrict access to the Event Manager Alarm Server and the Event Manager Agent Container (and all agents housed by the Agent Container):
Open the /OperationsCenter_install_path/config/daemon.ini file in any text editor.
Add the following command as an argument to the javaArgs property as follows:
JavaArgs=-CORBA.Allow=any IP address** -Xmx256m Stop and restart the Operations Center server. ** IP address is for the host machines that should be allowed to access the Event Manager