Fast and Lightweight Logs and Metrics processor for Linux, BSD, OSX
Eclipse Mosquitto - An open source MQTT broker
Open Source Monitoring System for performance and availability.
High capacity syslog data collection, filtering, and management.
software for email automation (newsletters, transaction mails, etc.)
Open Source SIEM
A multi-platform universal log collector and forwarder
Lightweight intrusion detection for IoT and embedded devices.
Tkined/Scotty is a graphical network monitoring package
XML Data Stream Broker/Replicator