This is a multi-use bash script for Linux systems
Set Linux as router in one command
TraceMAC is a command-line Layer 2 traceroute for Cisco switches
A firewall for humans.
Open Source Monitoring System for performance and availability.
CacheGuard Gateway is a UTM, a WAF, and a QoS management appliance.
Sysmon prints short and uniform information about OS
The Free & Popular opendhcp application for Physical & Virtual Machine
Wide Area Network Emulator
Programmable completion code (bash) for ip[6]tables (netfilter.org)
A simple, handy network addressing multitool with plenty of features.
Standalone web application allowing to monitor end points availability
Open source voucher management / hotspot system
Programmable completion code (bash) for ipset (netfilter.org)
MitM pentesting opensource toolkit
simple XEN guests / cloud management console shell
flex-fw is a small and fast console frontend to iptables