Monitorix is a free, open source, lightweight system monitoring tool
Python library and shell utilities to monitor filesystem events
Network Enumeration Tool for Host Exploration and Recon
Produces a graphical map of hosts, switches and routers in a network.
Fritz!Box SmartHome Monitoring with PRTG and AHA-Interface
Monitor monthly internet Transmit and Receive bandwidth usage - Linux
An open-source and enterprise-level monitoring system
ipset set listing wrapper script
Open source tool to monitor your servers and websites
Brute-forcing WAN/LAN services
SNMP poller for Xymon
single file multi-purpose multi-platform shell written in php
OSPF network discovery script via SNMP.
Network performance monitoring and logging script for Cisco devices.
A wireshark dissector plugin for the IEEE 1905.1 protocol.
Is your host up or down?
Detect Flooder IPs, Reduce Attack Surface against HTTP Flood Attacks
NDPMon - Neighbor Discovery Protocol Monitor