Xplico is a Network Forensic Analysis Tool (NFAT)
DSL for writing communication benchmarks
PCAP from another point of view
Pinger alert, STATICTICAL TABLES, send EMAILs or SMS by SMS GATEWAY
PeerGuardian - a privacy oriented firewall application
Apache module for SNMP monitoring
Open Source SIEM
Bandwidth monitor and rate estimator
Allows executing code on MIPS32 EmbeddedLinux devices (WLAN routers)
Scalable, distributed monitoring system for high-performance computing
PostgreSQL monitoring for Zabbix
Monitor Apache using SNMP