The USB Keyboard Target TTY Extension is a Linux kernel patch which allows you to bind the input/keybdev.c driver which is used for USB keyboard input to a specific console. In essence, this allows you to use Linux with two keyboards (PS/2 and USB) and have the USB keyboard attached to, for example, tty5 to control a speech-based application like Emacspeak, and have your PS/2 keyboard function as before. If you can stand audio output for Websurfing, you get a Linux PC with two terminals.
Wackamole is a tool that helps with making a cluster highly available. It manages a bunch of virtual IPs that should be available to the outside world at all times, and ensures that exactly one machine within the cluster is listening on each virtual IP address that Wackamole manages. If it discovers that particular machines within the cluster are not alive, it will almost immediately ensure that other machines acquire the virtual IP addresses the down machines were managing. At no time will more than one connected machine be responsible for any virtual IP.
Ganglia is a scalable distributed monitoring system for high-performance computing systems such as clusters and grids. It is based on a hierarchical design targeted at federations of clusters. Ganglia is currently in use on over 500 clusters around the world and has scaled to handle clusters with 2000 nodes.
AutoNOC is a high performance, production integrated, peer-to-peer network operations management platform for Windows and Linux. It provides real-time historical analysis, root cause, fault detection, reporting, alerts and alarms, and no-nonsense correlation. It is an interoperable vendor independent solution with built-in support for Microsoft, Cisco, Linux, IBM, and other major technologies. Additionally it offers many novel capabilities, including end user personalization, easy scalability, compressed historical databases, infinite histories, event archiving (it works as a syslog server), and multi-language support.
big:eye is a system management server that was developed for enterprise IT infrastructures. It manages faults, performance, inventories, and configurations through an impressive user interface. It produces maps through auto-discovery, and monitors faults, Cisco, Motorola, and SNMP devices.