izBalancing is a bash script featuring an in/out multi-homed load-balanced Internet gateway traffic manager with a failover facility. It features multiple balanced default gateway configurations, load-balanced outgoing connections from LAN to Internet connections, and management of multiple incoming connections from many Internet ISP lines to DMZ/LAN Servers. It is a SystemV compliant script, and can be easily run at boot. It will automatically discover your local IP addresses. You can cleanly start and stop your multi-homed configuration with a simple command (izbalancing start|stop|restart). Adding new Internet connections is very fast and easy: you need only provide the interface name, router IP address, and a descriptive name. If the izping daemon is installed into /etc/rc.d/init.d/, it will be used for automatic failover and recovery of Internet lines.
glNetViz is a tool for visualizing computer network topologies with WebGL. With the abilities of real time visualizing network traffics flowing around the local network and to/from the Internet, you can manage the various network more easily and efficiently. glNetViz is intended to be a convenient tool that can easily visualize the network topology from the serialized data in YAML or JSON.