Community-based GPL-licensed network monitoring system
Command line tool for managing Amazon S3 and CloudFront services
free netflow analyzer
Enhanced Apache Server Status page - for one or multiple servers
Open Source SIEM
NfSen plugin to generate and analyze per-IP statistics
A SNMP agent for Cacti
Collects data about network useage using libpcap.
A wrapper for PHP’s default session handler, using MySQL for storage
AlertOnFailure was inspired by XYmon, a Big Brother Compatible Monitor
Manage your ISC DHCPD service