Light-weight system monitor for X
SQL operating system instrumentation and monitoring framework
Open Source Monitoring System for performance and availability.
FlowViewer is a web-based netflow data analysis tool.
sap_mon, a tiny sap base monitoring tool on linux
Monitor monthly internet Transmit and Receive bandwidth usage - Linux
Count the number of people around you by monitoring wifi signals
NetFlow iptables module for Linux kernel
Continuously monitor server connections
Open Source SIEM
Gerix WiFi cracker
Nagios 4.1.1 with PNP4Nagios 0.6.25 and NagiosQL 3.20
OSPF network discovery script via SNMP.
Network performance monitoring and logging script for Cisco devices.
network control and reporting
NETAPI detector connections and directory changes
Acquires external IP address from command line
Is your host up or down?
BGPHist stores MP-BGP updates activity and history into a database.
Recursive mapping/discovery of network devices via CDP/OSPF