A security information event management (SIEM) system is a software solution which aggregates and analyzes activity from many resources across the business network and infrastructure. A SIEM provides real-time analysis of security alerts and data.
Use an open-source or trial license of a SIEM solution to set up, configure, and run the services provided by the software. Create a network of hosts, servers, and domain controllers which generate network activity and alerts. Monitor the alerts through the SIEM.
Popular SIEM solutions:
Splunk Enterprise Security
IBM Security QRadar
SolarWinds Security Event Manager
OSSEC (open source)
AT&T AlienValut Unified Security Management