Zenoss - Intelligent IT Operations Management
Full-Stack Infrastructure Performance Monitoring
Application Performance Monitoring System
Bluetooth Low Energy (BLE) packet sniffer and transmitter
Self-hosted, lightweight server and website monitoring and O&M tool
Free and Open Source network access control (NAC) solution
FAN is Linux-based operating system provided Nagios
Open source tool to monitor your servers and websites
FlowViewer is a web-based netflow data analysis tool.
Xplico is a Network Forensic Analysis Tool (NFAT)
Detect Flooder IPs, Reduce Attack Surface against HTTP Flood Attacks