Open-source systems performance monitor
SQL operating system instrumentation and monitoring framework
Lightweight data shippers of the Elastic Stack
Performance Data collector for Monitoring.
Firewall log analyzer
High capacity syslog data collection, filtering, and management.
free netflow analyzer
Wipe erase data from hdds on the network, unlimited hard disks
Logging utility for DB2 for LUW written in SQL-PL
Linux system monitoring tool for multiple hosts
Enterprise-class, distributed monitoring solution for networks & apps
Snare Enterprise: bit.ly/Snare-Trial
centralized syslog-ng monitoring frontend writen in php
OPTOSS Next Gen Network Management System (NG-NetMS)
PotHead