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We can manually enter required information of host or we can use auto-discovery method. Nmap requires root privileges to be able to use raw sockets for “Syn Scanning” (a method to detect open ports through firewalls).
If we’ll use auto discovery, we need an active agent to discover targets in network. So we need to configure “privilege delegation” in the host of our agent (which we’ll use for scanning).
I could add this host to /etc/hosts file of my cloud control to see its name instead of its IP. Click “deploy agent” to start installing Management Agent to target server. Click “setup”, “add target”, “add targets manually”, then click “add host”.
Click “add” button to enter hostname (or IP) of the target server you want to add. Next steps are same with adding “discovered targets”, you enter the location to install agent, enter the credentials then click next.
In my previous post, I tried to show how to install Enterprise Manager Cloud Control 12c, now I’ll show how to add target hosts to our Enterprise Manager system.
I assume that you’re in a similar position (installed Cloud Control but haven’t added any target yet).
If the URL is correct and the provider is up, there may be a problem with the configuration of the portal repository.To edit an existing schema for this purpose, select Edit Schema in the Schema portlet.Check whether the Oracle Internet Directory port is operational and that the Oracle Portal configuration is referring to the correct host name and port.Click “setup”, “security” and then “privilege delegation”.Currently I have only one active agent (it’s the agent installed on OEM Cloud Control server), so I’ll configure privilege delegation for it. Select “sudo”, enter “/usr/bin/sudo -u %RUNAS% %COMMAND%” as sudo command. So we said that this host supports sudo for privilege delegation but in fact, we haven’t configured sudo yet.