OEM Agent

OEM-AGENT on port 3872 is a service used by Oracle Enterprise Manager. It facilitates the monitoring and management of Oracle databases and applications. This service is crucial for maintaining the health and performance of Oracle environments.

What is OEM Agent

OEM-AGENT, operating on port 3872, is a critical component of Oracle Enterprise Manager. This service is designed to monitor and manage Oracle databases, middleware, and applications. By collecting performance metrics and providing alerts, it helps administrators ensure the optimal functioning of Oracle environments.

Oracle Enterprise Manager, often abbreviated as OEM, has evolved over the years to become a comprehensive suite for managing Oracle products. The OEM-AGENT plays a pivotal role in this suite by acting as a bridge between the monitored targets and the central management console. It collects data, executes tasks, and reports back to the central repository.

The history of Oracle Enterprise Manager dates back to the early 1990s, and it has since grown to support a wide range of Oracle products. The OEM-AGENT is essential for tasks such as performance tuning, resource allocation, and ensuring compliance with organizational policies. Its ability to provide real-time insights and automated management makes it indispensable for large-scale Oracle deployments.

OEM Agent runs on TCP and UDP port 3872 and is official IANA port.

Security risk

If port 3872 is open and the OEM-AGENT service is running, it could be a potential target for unauthorized access or attacks. An attacker could exploit vulnerabilities in the service to gain insights into the database environment or disrupt monitoring activities. It is crucial to secure this port with appropriate firewall rules and ensure that the service is up-to-date with the latest security patches.

In our UFW tutorial you can follow instructions how you can configure UFW to close port 3872. Use StackChanges to monitor if the OEM Agent port is closed and stays closed. StackChanges will send an alert if port 3872 is open again.