Developer Deploys First SIEM in Home Lab, Documents Key Lessons Learned

A developer shared their experience setting up a Security Information and Event Management (SIEM) system for the first time in a Cloudshare lab environment. The deployment involved configuring log sources including Windows Event Forwarding, Sysmon, and rsyslog on a Linux system. Three experiments were conducted — simulating a brute force attack, running suspicious PowerShell commands, and generating Linux log noise — each successfully detected and correlated by the SIEM. Key takeaways included the critical importance of proper log source configuration, the volume of data even small environments produce, and how intentional event triggering helps distinguish normal from abnormal activity. The author plans to next focus on tuning detections and integrating threat intelligence feeds.