10 free enterprise-level security monitoring tools

1. zenoss

Zenoss is an enterprise-level open-source server and network monitoring tool. It is most notable for its virtualization and cloud computing monitoring capabilities. It is hard to see that other old monitoring tools have this function.
2. ossim

Ossim is short for open source security information management (Open Source security information management). It has a complete Siem function and provides an open source detection tool.ProgramPackage and an associated engine are designed to reduce the heavy workload of the Analysis Department.

3. Spiceworks

Spiceworks is a solid IT network and system management engine with security monitoring capabilities that allow small and medium-sized enterprises to independently monitor applications and systems and provide warnings before problems expand.

4. splunk

Splunk is a log collection and analysis tool that allows administrators to concentrate monitoring data on applications, network devices, and servers so that they can submit reports that can be used as evidence when necessary, however, the free version can only collect MB of logs every day.

5. zabbix

You can use zabbix to track network devices, services, servers, and applications for traditional Security Logging and analysis, as well as performance management and capacity planning.

6. firegen

Analyze firewall logs of mainstream Firewall vendors, such as Cisco, zhanbo, SonicWall, FortiGate, and race gate, which can identify and interpret recorded events, inject more meaningful information into the boring data.

7. lansweeper

You cannot monitor assets you don't know. You can use lansweeper to better view hardware and software assets on your network. lansweeper is an open-source, agentless scanner, it helps you lay a solid foundation for better monitoring.

8. NMAP

Although the NMAP is old, it is equally dynamic. It allows administrators to track device lists in Heterogeneous Networks, manage Service Upgrade Plans, and monitor the normal running time of hosts and services.

9. Nagios

Nagios is a fully functional open-source network management and monitoring tool. It provides network services, host resource monitoring, and network detection capabilities, supports remote script monitoring and remote monitoring through encrypted tunnels.

10. ossec HIDS

Compatible with all operating systems. ossec HIDS is a host-based intrusion detection system that provides log analysis, integrity check, Windows Registry monitoring, and rootkit detection, provides time-based alarms and positive responses.