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.
netcf is a library and command line tool for configuring networking on Linux machines in a platform-independent way, using the platforms native configuration mechanisms. Supported are all the various ways in which physical interfaces, bridges, bonds, and VLANs can be combined. The configuration of a network connection is described in an XML format that emphasizes the logical relationship between the interfaces involved, e.g. a bridge connection describes the bridge interface itself and all the interfaces initially enslaved to it. Interoperability with existing network configuration tools is guaranteed since netcf relies only on native network configuration files, both for reading and writing them. Modifying network configuration with netcf has exactly the same effect as modifying the native configuration files directly, and netcf and other tools can be used interchangeably.
NTPmon is a Web-based monitor for (usually LAN-based) NTP servers. It provides a small number of health metrics that help to locate NTP configuration or operational trouble spots. It uses RRDtool as its storage and graphing engine, and provides a CGI script for viewing the results.
NetConnect is a command line tool for automating the login process to routers, switches, or UNIX hosts and any intermediate devices or proxies in the path. It does this by using credentials supplied within a configuration file. It also allows users to run Perl based scripts on a single device or devices in parallel to automate tasks. Although it was originally designed around Cisco routers and switches, it can be extended to work with any CLI based device by specifying custom prompts that different devices use. It works well with Cisco routers and switches as the concepts around "enable" mode and the corresponding syntax of the prompt are contained within the source. Devices can be stored within your configuration file, so you are able to connect to devices using a portion of their name (using regular expressions) as opposed to having to remember IP addresses or full DNS names.
DHCP Lease Query in PHP is a PHP class that will allow you to send DHCPLEASEQUERY packets to inquire about known leases from a remote DHCP server. It is similar in nature to ISC's OMAPI but without the hangs it creates, nor does it cause dhcpd to behave in a single-threaded fashion while talking to it. After all, it emulates an actual DHCP "helper" (relay agent) and, as such, all queries travel over IP. It is based on RFCs related to DHCP and follows the RFCs as closely as possible.
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.
The ldNetManager.py tool gives you the ability to manage your network devices without having to purchase a product like Cisco's LMS or go through the planning phase of deploying a product like func. Such tools only have the ability to manage devices in their realm. Func supports Linux devices, and Cisco LMS supports only Cisco devices. This tool has one goal: to update your devices without deploying any software to your remote devices. All you need is either telnet or SSH access to your devices, and Python2.4 or better with Pexpect installed.