track log files, block intrusions, and much more
Open Source SIEM
Gerix WiFi cracker
Scalable, distributed monitoring system for high-performance computing
Highly configurable SNMPv1/v2c/v3 application-level proxy
FreeDNS update python script
Monitor SNMP hosts with a sysfs-like filesystem in user-space
Batch system monitoring and archiving
Panel Indicator to interact and monitor hosts
Tool for identifying Network Service Dependencies
Monitoring your infrastructure for free.
SpiderOak Nagios check
Open Source System and Network Monitoring for Linux Desktop