Nagios is a host, service, and network monitoring system that will watch your network and alert you to problems before your clients or end-users do. The system runs checks on hosts and services that you specify using plugins that return status information to Nagios. When problems are encountered, the system will send notifications to system administrators so that they can take action on the problem. The JumpBox for Nagios gives you a head start to using the system. It eliminates the complexity involved in getting the application installed, and allows you to focus on the configuration for your specific environment. Since Nagios is based on plugins, depending on what you want to do this will vary in complexity.
Lilith is a logging and access event viewer for the Logback logging framework. It has features comparable to Chainsaw, a logging event viewer for log4j. This means that it can receive logging events from remote applications using Logback as their logging backend. It uses files to buffer the received events locally, so it is possible to keep vast amounts of logging events at your fingertip while still being able to check only the ones you are really interested in by using filtering conditions.
Whiskers is an educational PocketPC application that tries to exploit all the hardware available on most common PDAs providing a link between different features such as GPS-Bluetooth-Wireless. Generally, whiskers was built with radio reconnaissance in mind as help for geocachers or wardrivers, but also as a penetration and audit tool. There is support for in-depth device scanning, triggering actions based on filters when certain devices are in range, centralized GPS logging with search functions for private or public databases, and much more.
SSH Askpass Keyring is an alternative ssh-askpass utility with support for the gnome-keyring. It stores the passphrases for SSH keys in the gnome-keyring so that autoloading of the keys at login doesn't require the user to enter passphrases. If you use SSHv1 keys or don't use gnome-keyring as your ssh-agent, this utility may be helpful.
dhcpcd-dbus receives interface configuration events from the dhcpcd control socket and emits them to the DBus listeners. It also has methods to release, rebind, stop, and query dhcpcd on an interface. This allows users to control dhcpcd to some extent, as all dhcpcd operations require root privileges, and DBus has a fine-grained ACL list for accessing these functions which dhcpcd-dbus can optionally use. dhcpcd-dbus can also talk to wpa_supplicant via its control socket and expose a minimal interface.
dhcpcd-gtk is a GTK+ monitor for dhcpcd. It uses dhcpcd-dbus to talk to dhcpcd and wpa_supplicant. At present, dhcpcd-gtk is just an application that sits in the notification area. The icon has several states, showing offline, address negotiation, and online. When attempting to negotiate an address, you get a nice animation. A notification bubble is also shown per interface state change. Future versions will have Access Point selection and dhcpcd configuration options.