A suite of Monitoring Plugins (formerly known as nagios-plugins)
Community-based GPL-licensed network monitoring system
Open source monitoring system and time series database
An eye on your system
SQL operating system instrumentation and monitoring framework
Light-weight system monitor for X
Tools for BPF-based Linux IO analysis, networking, monitoring, etc.
Leading open-source visualization and observability platform
Nagios Open Source network monitoring software - The Standard In ITM
Open Source Monitoring System for performance and availability.
The Azure Landing Zones (Enterprise-Scale) architecture
Graphical network monitoring and documentation tool
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Install java, groovy and native applications as services or daemons
A Java based fault and performance management system
Intelligently block brute-force attacks by aggregating system logs
Full-featured enterprise network management tool