PotHead
Open Source SIEM
Open source tool to monitor your servers and websites
Computer security tool for the information gathering stage
Open source voucher management / hotspot system
DOCSIS network management
Energy and environmental monitoring of the server room
Simple web form for static assignment of DHCP leases
Visual Network Management System
Manage users OpenVPN
Cyber-wrt pbx is embedded system in DD-Wrt router
BGPHist stores MP-BGP updates activity and history into a database.
Centreon Hypervisor for multiple Nagios Poller via FTP
Network Intrusion Detection and Full Packet Capture System
Easy to use firewall for linux beginners.
Weblooker monitors serveral services on multiple systems for their sta
Easy to use web front-end for NAGIOS / ICINGA also CD installer
Web Based Network Inventory Tool