Free highly configurable application software for linux

Online Library Application (OLA) project is a Web-based library system for small/medium organizations (books, videos, etc.).
The software allows users to browse the library collection over the Internet, and allows authorized persons to manage sign in and sign out procedures, resource adds and updates, and data backups.
It was originally written for a non-profit organization to manage their resource library.
Main features:
- internet based
- highly graphical
- compatible with Netscape and Windows browsers
- suitable for tracking many types of resources (books, magazines, videos, music, etc.)
- can store a large amount of data about each resource
- borrowers do not have to set up an account
- stores minimal information about borrowers--just the bare essentials
- simple database export function
- template based for easy configuration/customization
- optional gzip compressed output to save on bandwidth
- although designed for small organizations, catalog should scale well to millions of entries

The KTA is a complete telnet and SSH application designed for use by both end-users and developers. For end-users it provides a cross-platform vt320-compatible terminal written in Java.

For developers it provides an extensible plugin API that can be used to implement automated telnet and SSH solutions in a client/server environment.

Gnome Remote Connection Manager is a gnome application that stores information
about remote connections.
It gives you a GUI program to launch applications like telnet, shh, or rdesktop. It is highly configurable as to what type of applications it launches, so you are not limited to the three listed, for example I never thought of using it for ftp, but it would be easy to setup.
GRCM uses gconf to store information about connections.
Enhancements:
- Added some missing icons.
- Fixed a callback in the Connections Dialog that made the default arguments from the connection appear when selected.

ROX Filer is a fast and powerful graphical file manager.

It has full drag-and-drop support and background file operations, and is highly configurable.

BlackMail is a highly configurable SMTP mail filter that runs at a system level as a proxy to your existing mailer. Selectively reject bogus or spam mail during receipt, saving you extra storage space or irate users.
Blackmail operates at a system-wide level: all incoming and optionally outgoing mail is filtered.Will block unwanted mail relaying (if your mailer is unable to) and spams.
The filtering consists of various checks on the SMTP envelope and message headers: if any tests fail then the mail will be bounced. Blackmail can...
Check against spam sites
Check against spam keywords
Check host names and email addresses using DNS for validity
Check against the RBL (Realtime Blackhole List) for spam IP addresses
Check that To: and From: address do not match (a common spam signature)
Check correct header formation e.g. Message-ID
The spam sites and spam keywords are of your choice, you can block who or what you want. Minimal sample lists are provided.
BlackMail is known to work with:
Mailers: Smail, Sendmail, Qmail, Fetchmail
OSes: Aix, various BSD, Irix, Linux, NeXTStep 3.x, Solaris, SunOs, SVR4 (Re-confirmation is required for some of these OSes.)
It should be possible to use BlackMail with most SMTP mailers on most UNIX systems. Blackmail is not designed to run on Windows or OS/2, but if you wish to port it...
Enhancements:
- Removed old reference to www.bitgate.com

Ggradebook project is a fully-featured GNU gradebook.
An application for tracking student grades for teachers. It uses GTK+ and can optionally be compiled to use GNOME
Enhancements:
- Added possibility to set default preferences.
- It is now possible to associate a percentage with letters.
- Letters and numeric scale now configurable.
- Made some minor chang

The "Open Device Monitoring and Tracking Protocol", otherwise known as OpenDMTP, is a protocol and framework that allows bi-directional data communications between servers and devices (clients) over the Internet and similar networks.
OpenDMTP is a highly configurable and extensible protocol for communicating with mobile devices.
OpenDMTP is particularly geared towards Location-based information (LBS) such as GPS, as well as temperature and other data collected in remote-monitoring devices. OpenDMTP is small, and is especially suited for micro-devices such as PDAs, mobile phones, and custom OEM devices.
We saw a need for a communications protocol that allowed high-latency, low-bandwidth (HL/LB) devices to transmit location data to monitoring-systems. Because these devices often have limited network connectivity, the protocol needed to be small and efficient. Example devices include mobile phones, PDAs, OEM micro-devices (alarm systems, temperature monitors, etc.), and more.
There are many mobile GPS tracking devices on the market today with their own closed proprietary protocols. Searching the web for open protocols revealed only a few available for transferring data (including GPS information) between devices. However these solutions are generally designed for non-mobile applications and/or lack some of the low-bandwidth, configurable, and extensible features that mobile applications require.
Main features:
- Small Footprint: Mobile devices typically have limited resources on which to run client code (ie. memory, processor speed). An open protocol designed with this in mind should be optimized to allow efficient implementation and should easily support devices such as PDAs, mobile phones, GPS monitoring devices, and other OEM micro-devices.
- Network Efficient: Mobile devices typically have limited network connectivity, and in some cases data communication can be quite expensive (e.g. satellite). Because of this the protocol needs to be efficient in its dialog between the client and server. The communication needs to be optimized such that the necessary information can be conveyed with a minimum number of bytes in the least amount of time.
- Bi-directional: Some devices can support two-way communication (ie. GPRS, or other socket based connections), while others may only support one-way communication (ie. some satellite communication systems). With this in mind, a protocol should be designed to support both duplex (two-way) and simplex (one-way) communication.
- Transport Media: Differrent mobile applications will have their own unique way of communicating data back to the server. Some may use GPRS, or socket based communication, others may use satellite communication, while still others may use other forms of wireless communication, such as BlueTooth. The design of the protocol should be able to encompass all such transport media types, regardless of the type of transport in use.
- Flexible Data Encoding: Most types of transport media allow for the transmission of binary encoded data. However, there may be some forms of media for which an ASCII encoded data packet is much better suited. A protocol designed with this in mind should be able to support both types of data encoding.
- Configurable Messages: Due to the broad range of data types used in mobile applications, the protocol should be flexible enough to define standard messages, yet still allow custom messages within the framework.
- Extensible: Not every mobile application is the same. Some require special handling and may have various types of inputs and outputs. A protocol designed for mobile applications should insure that the framework can be easily extended to incapsulate the specific needs of the device.
- Industry Compatibility: Having an open protocol insures better compatibility between different client devices and service providers.
- Reference Implementation: Having a reference implementation that showcases the major features of the protocol provides an easy starting point on which developers can add their own features and platform specific implementation without having to worry about how data gets from the client to the server.
OpenDMTP was specifically designed to suit all these needs, especially "Small Footprint" and "Network Efficiency". The typical data plan for GPRS communication, for instance, is usually 1Mb per month. OpenDMTP was designed to optimize packet encoding to allow the collection of GPS information packets once every 3 minutes, 24 hours a day, 30 days a month, and still stay under the 1Mb data plan limit.
While XML is very extensible, it fails the "Small Footprint" and "Network Efficiency" requirements. Thus, it was discounted as a viable protocol solution. Many mobile devices do not have the resources necessary to be able to provide full XML parsing functionality. And an XML packet may need to be several hundred bytes in length just to send a few bytes of actual data. This alone would make the solution cost prohibitive for high-cost transport media such as satellite.
OpenDMTP also includes a full-featured commercial quality reference implementation to jump-start development.
Enhancements:
- NEW: Minor optimizations made to message logging.
- FIX: Log file now properly displays account/device on client connection.

Call Commander is a high-performance management system and call screening designed for use in professional talk-radio environments that integrates directly with a variety of popular broadcast telephone interfaces.
The system is designed to allow the easy acquisition, tracking, communication and archiving of caller information, along with tools to enable seamless communication between the various key talk show players (talent, producer, screener, etc).
Also provided is an automated Segment Clock to help keep things running on time.
Call Commander is highly configurable, with virtually every aspect of its on-screen appearance and functionality capable of being customized for the needs of a particular site. Visit our gallery of screen shots showing some of the possibilities available.
Call Commander runs on the popular GNU/Linux operating system, with clients also available for Microsoft Windows 98, 2000 and XP. It is freely available under the GNU General Public License.
Main features:
- Highly customizable and configurable.
- Comprehensive caller data acquisition, status tracking and archving.
- Point-to-point communication and alerting for Talk Show personnel.
- Synchronized, automatic segment clock.
- Works with a variety of broadcast telephone systems, including:
- Comrex/Gentner TS-612
- Telos 100 1A2 Interface
- Telos 100 Direct Interface
- Telos 2101
- Telos ONEx6
- Telos TWOx12
- Works with LAN, Internet and Dialup networking connections.
- Runs on the rock-solid GNU/Linux operating system.
- Totally free and open -- No dongles, unlock codes, software keys or other arbitrary limitations.