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)
Community-based GPL-licensed network monitoring system
The official PHP SDK for Sentry (sentry.io)
Lightweight network IP scanner
The Active Monitoring System
Open Source Social Network (OSSN) is a social networking software
Monitor temperature sensors, fan speed, voltage, load & clock speeds
Application Performance Monitoring System
An ID Generator for PHP based on Snowflake Algorithm
Application to comfortably monitor your Internet traffic
The core of our monitoring platform
An eye on your system
Monitorix is a free, open source, lightweight system monitoring tool
Monitor and troubleshoot transactions in complex distributed systems
A full packet capturing, indexing, and database system
Apache HertzBeat(incubating) is a real-time monitoring system
The open source time series database
pg_activity is a top like application for PostgreSQL server activity
Zeek is a powerful network analysis framework
Enterprise-Grade Open-Source Network Management Platform
Raspberry Pi config for all things Internet
Performance Co-Pilot
A fancy self-hosted monitoring tool