Firewall log analyzer
The Network UPS Tools repository
Simple tool to configure Windows Filtering Platform (WFP)
CUPS is a standards-based, open-source printing system
eBPF-based Linux kernel networking debugger
An opensource OpenWrt variant for mainland China users.
Communication framework for data-centric high-performance applications
The systemd system and service manager
Ncurses-based monitoring application for wireless network devices
An advanced network simulator to design and configure virtual networks
HTTP proxy to block ads and customize webpages
Open Source Monitoring System for performance and availability.
Next Generation Open Source Firewall
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Network Load Balancer and Application Security
Nagios Open Source network monitoring software - The Standard In ITM
Remote control software for applications using wi-fi or bluetooth
FreeBSD Multi PPP daemon
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
A secure, feature-rich, customizable embedded Linux network appliance
Anti Spam SMTP Gateway
UltraVNC: Remote Access Tools VNC/RFB Remote Desktop Support Software
A free Usenet server with SQL backend and RBAC.