Security Information & Event Management (SIEM) has evolved over the years to become one of the most trusted and reliable solutions for log management, security, and compliance. The demand for SIEM tools is constantly increasing within network and IT security teams. SIEM software works with the principle of log collection and correlation, therefore, it’s important to ensure that log correlation happens effectively, in real time, and provides centralized visibility into potentially insecure and non-compliant network activity. SolarWinds Log & Event Manager (LEM) is available as a virtual virtual appliance offering centralized log management and network defense from Web-based interface.
Source: https://thehackernews.com/2013/07/SolarWinds-SIEM-Solution-Event-Management.html