A network diagnostic tool
APM, (Application Performance Management) tool
Open Source Monitoring System for performance and availability.
Command line tool for managing Amazon S3 and CloudFront services
Produces a graphical map of hosts, switches and routers in a network.
Fritz!Box SmartHome Monitoring with PRTG and AHA-Interface
Xplico is a Network Forensic Analysis Tool (NFAT)
OPTOSS Next Gen Network Management System (NG-NetMS)
Netflow visualisation and investigation tool
Scalable, distributed monitoring system for high-performance computing
BGPHist stores MP-BGP updates activity and history into a database.
Hierarchical Cluster Engine project
Show server load-average chart and run pre-define command remotely
Easy to use firewall for linux beginners.
Weblooker monitors serveral services on multiple systems for their sta
Easy to use tool to block unwanted network access.
AlertOnFailure was inspired by XYmon, a Big Brother Compatible Monitor