PotHead
Open Source SIEM
Webbased Dashboard to show the status of your IT infrastructure
Highly configurable SNMPv1/v2c/v3 application-level proxy
Nelmon is a collection of plugins for Nagios and compatible products
Monitoring of websites with spider and email notifications
Is your host up or down?
Batch system monitoring and archiving
A free SYSLOG Client
Automated Bitcoin mining monitor and up-time enforcer
Stormons is a powerful SAN mapping and monitoring program
School assignment for a simple network traffic analyzer
SNMP adaptor for JMX.
Bandwidth Monitoring Tool; Console SNMP traffic monitor
GUI Frontend to BBWin XYmon Monitoring Agent