Self-hosted, lightweight server and website monitoring and O&M tool
A utility to safely generate malicious network traffic patterns
A suite of Monitoring Plugins (formerly known as nagios-plugins)
The Network UPS Tools repository
BGP and RPKI monitoring tool
Lightweight network IP scanner
The Active Monitoring System
pg_activity is a top like application for PostgreSQL server activity
Office Tool Plus localization projects
Monitor temperature sensors, fan speed, voltage, load & clock speeds
A fancy self-hosted monitoring tool
Floating window used to display current network speed, CPU & memory
eBPF-based Cloud Native Monitoring Tool
Network Enumeration Tool for Host Exploration and Recon
The open source time series database
High performance ping tool
Open-source systems performance monitor
A Swiss army knife for your daily Linux network plumbing
An eye on your system
Monitorix is a free, open source, lightweight system monitoring tool
Collect and display information and stats from a running PostgreSQL
Zeek is a powerful network analysis framework
Free open source tool for real-time PC hardware sensor monitoring
Discourse Network Analyzer (DNA)
Apache HertzBeat(incubating) is a real-time monitoring system