An eye on your system
Zenoss - Intelligent IT Operations Management
Monitor monthly internet Transmit and Receive bandwidth usage - Linux
Deploy Prometheus monitoring system
Network Ping time and UPS Logger
Xplico is a Network Forensic Analysis Tool (NFAT)
Count the number of people around you by monitoring wifi signals
Raven is the legacy Python client for Sentry
PotHead
Open Source SIEM
Scalable, distributed monitoring system for high-performance computing
Network performance monitoring and logging script for Cisco devices.
Monitor SNMP hosts with a sysfs-like filesystem in user-space
Batch system monitoring and archiving
Panel Indicator to interact and monitor hosts
Automated Bitcoin mining monitor and up-time enforcer
Monitoring your infrastructure for free.