Free central software for linux

QNetwalk is a Qt-version of the popular NetWalk game for system administrators.
Rules of play:
- You are the system administrator and your goal is to connect each computer to the central server.
- Click the right mouses button for turning the cable in a clockwise direction, and left mouses button for turning the cable in a counter-clockwise direction.
- Start the LAN with as few turns as possible!
Main features:
- Built-in levels generator.
- Novice, Amateur, Expert, and Master skill levels.
- Auto saving of settings.
- Turn animation.
- Highscores.
- Sound support.
- Command line support.
- International languages support (now Brazilian Portuguese, German, Dutch, English, French, Polish, Russian, and Spanish).

PersonalDB is background process that provides access for multiple users to individual SQL databases. The SQL database provides a central internet accessible datastore for a variety of applications. In particular, the database can be used as a personal information manager (PIM).

However, SQL databases are simply a way of storing structured data. As such, a PersonalDB account can be used to store many different types of data. A PersonalDB account is an ideal way of storing information that should be accessible world-wide.

Personal data like addresses, todo items, and memos are certainly are good choice. A PersonalDB account can also be used to store application settings, so that they follow you from computer to computer.

Cutlass is a cross-platform system for secure peer to peer communication, oriented towards small groups. It provides IM and file transfer. A major design goal is to be easy to use, even by non-security conscious users. The Cutlass main goals are :

Easy enough to use for broad adoption
Coded using widely supported APIs, to be multiplatform
Secure by default, using encrypted channels
Useful for everyday Internet functionality. Transmit sound, files, text.
P2P as independent of central servers/failure points as possible.
Extendable (both in functionality and paranoia)
Not dependent on central servers

Cutlass is currently under development. The current version provides message, file and voice transmission, but grouping, directory services and connection forwarding are not yet implemented.

Cutlass was originally named DEFJAM (Distributed, Encrypted File Journalling And Messaging), and was the subject of a presentation at Notacon.

Astaro Command Center (ACC) is an application for centralized management of Astaro Security Gateways. With ACC, network administrators can easily manage and control multiple Astaro devices.
The intuitive Web-based user interface provides an effective overview that details the actual health of each device, swiftly allowing administrators to see which gateways require immediate action.
Astaro Command Center offers monitoring, inventory management, central update management, WebAdmin single-sign-on, and a world map view.
Enhancements:
- This version changes the GUI to the new look and feel of the ASG V7 style and it adds V7 support.
- It also handles the new daylight saving time dates from the Energy Savings Act in the US and Canada.
- Cluster monitoring global pattern version and UPS battery charge monitoring are now supported, and ACC can be used as an Up2Date Cache for all V7 packages.
- Besides these new features, some minor bugs were fixed.

KGeography is a geography learning tool.
Main features:
- Browse the maps clicking in a map division to see its name
- The game tells you a map division name and you have to click on it
- The game tells you a capital and you have to guess the division it belongs to
- The game tells you a division and you have to guess its capital
- The game shows you a map division flag and you have to guess its name
- The game tells you a map division name and you have to guess its flag
Maps available in current release are:
- Africa
- Europe
- France
- Germany
- Italy
- North and Central America
- South America
- Spain
- USA
Enhancements:
New maps included:
- Asia
- Austria
- Brazil
- Canada
- China
- Italy by provinces
- Netherlands
- Norway
- Poland
- World

Ant-Eclipse is a task for the Java build tool Ant generating Eclipse projects to be just imported and used easily. Ant build scripts are used as a central place for the configuration of sources and libraries which the generated projects are based on.
The most usual way to develop a software is to write, run and debug the source code in an IDE. However, as long as the first source files are compilable the software finds its way into a package and it must be possible to compile it, run it and test it in other environments where the IDE is not available. Build tools used for this job usually cannot read the project files where IDEs store information about packages and sometimes there are more IDEs used by developers. It seems obvious that the build tool needs its own description of the package.
Keeping the package configuration on two places is more error-prone and looking for errors caused by diffrerences in these configurations can cost much time when the error occur first during the run-time of an application.
It is allways the better to keep the configuration on a single place and not to maintain its copies on more places. If there are more tools used for the development one of them should be chosen as the owner and provider of the package configuration. The others have to base ther configuration on this central one either by using it directly or by refreshing their one if the central one changes.
Which tool is the best one for keeping the package configuration? It depends on the package and the development process. The most important tool is usually the one which automates compiling packaging and running tests because it produces the final package to be delivered to end-users. This automated production usually runs unattendedly reporting results from processing the current source code base. The configuration of this tool can be taken as the source for all the others.
Ant is the most favourite build tool for projects written in the Java language. Eclipse with JDT is a state-of-the-art IDE for Java developers. Unfortunately, Eclipse cannot use Ant build scripts to base configuration of its projects on them. Ant can be run from the Eclipse IDE but the configuration is kept separately.
Ant-Eclipse automates the task of creating an Eclipse project making the developer to write an automated build script as the first thing and to generate an Eclipse project from it whenever it changes. It keeps the Eclipse project always up-to-date with the last changes in the build script. This project refreshing is usually automated when more developers are working on a software project. They have to synchronize regularly their workspace with a central source code repository to integrate changes made by the others. This usually involves:
Synchronizing the source code with a central repository.
Updating the binary dependencies (libraries) from a central depot.
Generating resources (files) dependent on the environment (time and place where it runs) like build numbers, package manifests and so on.
The regeneration of Eclipse projects fits exactly to the last phase of such sychronizing process. This is the recommended usage of the Ant-Eclipse task.
A formerly existing Eclipse project will be overwritten if a new one is to be generated. Files for an Eclipse project are not generated if they exist and they are not older than the Ant build script (the Ant build script has not been changed). This update can be forced, however.
Enhancements:
- The tool has been used for over a year, and is considered a stable version.

k12admin-client project is a web-based server administration tool for K-12 school systems (client package).
K12Admin is a Wide Area Network administration program geared specifically to K-12 school systems.
It allows teachers in individual schools to administer the accounts in that school. K12Admin will administer the account information on client Linux servers in each school from a central server.
All administration is done through a web browser interface. The system also includes inappropriate web use scanning and security auditing.
The k12admin-client package is the client part of K12Admin. It is installed on school servers that get updated using information from the k12admin-server computer.
Enhancements:
- k12.updateclient cron job was sending an error message to root if another instance of k12.updateclient was already running.

BitTornado is a torrent downloader for Linux.
BitTorrent is a tool for distributing files. BitTornado is extremely easy to use and downloads are started by clicking on hyperlinks. Whenever more than one person is downloading at once they send pieces of the file(s) to each other, thus relieving the central servers bandwidth burden.
Even with many simultaneous downloads, the upload burden on the central server remains quite small, since each new downloader introduces new upload capacity.
Enhancements:
- T-0.3.16 was a huge success; the crashing bug seems to have been squashed flat, thank you so very much wxWidgets and wxPython. As a result, after a few very minor changes, here is T-0.3.17, a new stable release. This replaces the rather archaic T-0.3.7 as the latest stable version.