A network security analysis and monitoring toolkit Linux distribution.
Firewall log analyzer
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
Next Generation Open Source Firewall
Enhanced Apache Server Status page - for one or multiple servers
The professional way to manage your WiFi network using FreeRADIUS
Xplico is a Network Forensic Analysis Tool (NFAT)
PCAP from another point of view
Open Source SIEM
Open source voucher management / hotspot system
NfSen plugin to generate and analyze per-IP statistics
network control and reporting
web front-end for vnstat
Dashboard of network top-talkers using netflow sources
Network Intrusion Detection and Full Packet Capture System