OEM 12c : Discovering an agent on the OMS server

Hello guys, I hope everyone is doing ok in these times with the COVID-19. Nevertheless, I am writing to you a post about how to discover an OEM 12C agent on the same server that you have your OEM. In the other words, discovering the OEM agent in your OMS server as soon you have completed the installation of the OEM 12c. So let’s start. The first thing you have to do is to connect to your OEM 12 console:

This is the Enterprise Manager Home Page. Here you can select the page you would like:

Then click in “Add target” and after in “Auto Discovery Results”:

After in “Add Targets Using Guided Process” and choose “Oracle Database, Listener…” option:

Choose the server where you have your OEM 12c installed. In this case “vm2.localdomain”:

Connect to the database and setup a new password for the DBSNMP user and also unlock the status of this user:

SSQL*Plus: Release 12.1.0.2.0 Production on Thu Mar 26 12:40:05 2020

Copyright (c) 1982, 2014, Oracle.  All rights reserved.


Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
With the Partitioning, OLAP, Advanced Analytics, Real Application Testing
and Unified Auditing options

SQL> select username, account_status from dba_users where username='DBSNMP';

USERNAME
--------------------------------------------------------------------------------
ACCOUNT_STATUS
--------------------------------
DBSNMP
EXPIRED & LOCKED


SQL> alter user dbsnmp identified by <password> account unlock;

User altered.

Write this password under the “Database Discovery: Results” section:

Test the connection:

Review the results:

Confirm the target and finish the configuration:

brunors

*The views expressed here are my own and do not represent those of my employer.*

Hello, I’m Bruno — a dual citizen of Brazil and Sweden. I bring a global perspective shaped by experiences in both South America and Europe, with a strong focus on collaboration and innovation across cultures. I am a Computer Scientist, PhD Candidate in Information and Communication Technologies, focusing on Data Science and Artificial Intelligence, and hold dual Master’s degrees in Data Science and Cybersecurity. With over fifteen years of international experience spanning Brazil, Hungary, and Sweden, I have collaborated with global organizations such as IBM, Playtech, and Oracle, as well as contributed remotely to projects across multiple regions. My professional interests include Databases, Cybersecurity, Cloud Computing, Data Science, Data Engineering, Big Data, Artificial Intelligence, Programming, and Software Engineering,  all driven by a deep passion for transforming data into strategic business value.