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 Network Packet Sniffing tool developed in Python 3
Community-based GPL-licensed network monitoring system
Floating window used to display current network speed, CPU & memory
Monitor temperature sensors, fan speed, voltage, load & clock speeds
The Active Monitoring System
Lightweight network IP scanner
Bandwidth monitor and rate estimator
Centralized network visibility and continuous asset discovery
Application Performance Monitoring System
Open-source systems performance monitor
Application to comfortably monitor your Internet traffic
BGP and RPKI monitoring tool
An eye on your system
Monitor temperature sensors, fan speeds, voltages, load & clock speeds
Open source monitoring system and time series database
A fancy self-hosted monitoring tool
A simple program to monitor your network/data usage
The core of our monitoring platform
A distributed and high-performance monitoring system
Apache HertzBeat(incubating) is a real-time monitoring system
pg_activity is a top like application for PostgreSQL server activity
Official Zabbix Dockerfiles