You need to install Grid Control. Check my video tutorial on how to install it and configure agents http://kamranagayev.com/2011/01/31/video-tutorial-installing-oracle-10gr2-grid-control-and-deploying-agent/ ----- Original Message ----- From: Maureen English [mailto:maureen.english@xxxxxxxxxx] Sent: Wednesday, February 08, 2012 01:24 AM To: oracle-l@xxxxxxxxxxxxx <oracle-l@xxxxxxxxxxxxx> Subject: EM database control question I'm in the process of creating a few databases on a new machine. I ran dbca and generated the scripts to create the new databases, then ran the scripts. What I found was that when I ran the scripts for the first database, it configured EM database control to use port 1158. When I ran the scripts for the second database, though, it configured EM database control to use port 5500. Isn't there a way to have just one instance of EM database control running on a machine, using port 1158, but then be able to monitor any database from that one instance? We're not using Grid Control. - Maureen -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l