A Linux version of the Procmon Sysinternals tool
Log management solution that improves the performance of SIEM
Fast and Lightweight Logs and Metrics processor for Linux, BSD, OSX
software for email automation (newsletters, transaction mails, etc.)
Linux kernel mode debugfs keylogger
Open Source SIEM
A multi-platform universal log collector and forwarder
Tkined/Scotty is a graphical network monitoring package