NetMRG is a network monitoring, reporting, and graphing system. Using MySQL, PHP, C++, pthreads, and RRDTOOL, it is capable of monitoring thousands of arbitrary values at user-configured intervals (typically 5 minutes). Graph templating allows network and system admins to begin monitoring routers, switches, servers and other devices with minimal setup overhead. NetMRG is also capable of responding to programmable events, such as variables exceeding accepted tolerances. NetMRG can be deployed in server hosting and ISP environments, allowing users to view only their own equipment's bandwidth or traffic graphs.
LightBlue is a cross-platform Python Bluetooth API for Mac OS X, GNU/Linux, and Python For Series 60. It provides easy programmatic access to device and service discovery, RFCOMM sockets, L2CAP client sockets, sending and receiving files over OBEX, service advertising, and local device information.
Coherence is a set of DLNA/UPnP devices, like MediaServer and MediaRenderer. In addition, it includes a well-designed framework to extend other applications with DLNA/UPnP functionality. It also has an emerging DBus API, enabling these applications to participate in digital living networks. It supports Playstation 3 (PS3), XBox, and many other devices.
MIDAS NMS is a highly configurable network monitoring and network intrusion detection server. It uses a distributed client/server model that allows it to scale to very large networks, and features highly optimized Snort support that dramatically reduces the overhead of both the Snort Sensor and the alert data repository. It also supports Netsaint/Nagios plugins and Big Brother clients, allowing for easy migration.