The Network UPS Tools repository
Self-hosted, lightweight server and website monitoring and O&M tool
A suite of Monitoring Plugins (formerly known as nagios-plugins)
A utility to safely generate malicious network traffic patterns
Floating window used to display current network speed, CPU & memory
Lightweight network IP scanner
The Active Monitoring System
Community-based GPL-licensed network monitoring system
An open source, real-time monitoring system with custom-monitoring
Open-source systems performance monitor
The core of our monitoring platform
The open source time series database
Application to comfortably monitor your Internet traffic
Apache HertzBeat(incubating) is a real-time monitoring system
A distributed and high-performance monitoring system
An eye on your system
A full packet capturing, indexing, and database system
BGP and RPKI monitoring tool
Zeek is a powerful network analysis framework
Open source monitoring system and time series database
Enterprise-Grade Open-Source Network Management Platform
pg_activity is a top like application for PostgreSQL server activity
A Swiss army knife for your daily Linux network plumbing
Official Zabbix Dockerfiles
Free and Open Source network access control (NAC) solution