Free highly configurable software for linux

KmPlot 1.2.0 offers a software which has features of a mathematical function plotter for the KDE desktop. KmPlot is a mathematical function plotter for the KDE desktop. It has built in a powerful parser. You can plot different functions simultaneously and combine their function terms to build new functions.

Uncrustify is a source code beautifier for C, C++, C#, D, and Java.
The goals of this project are simple:
Create a highly configurable, easily modifiable source code beautifier.
Main features:
- Ident code, aligning on parens, assignments, etc
- Align on = and variable definitions
- Align structure initializers
- Align #define stuff
- Align backslash-newline stuff
- Reformat comments (a little bit)
- Fix inter-character spacing
- Add or remove parens on return statements
- Add or remove braces on single-statement if/do/while/for statements
Enhancements:
- Add nl_after_vbrace_open
- Improve option descriptions
- Fix seg faults (check for NULL)
- Fix spacing for operators () and []
- Add sp_before_dc and sp_after_dc to control spacing around ::
- Split pos_class_comma from pos_comma
- Improve line splitting a littleno longer break at :: or -> or .
- Add nl_enum_leave_one_liners and nl_getset_leave_one_liners
- Add mod_remove_extra_semicolon
- Fix handling of macro-open and macro-close
- Add align_var_struct_thresh
- Improve handling of comments after braces
- Add support for Qt slots and signals
- Add align_typedef_amp_style and align_var_def_amp_style
- Add sp_attribute_paren and handling of the __attribute__ macro
- Add align_typedef_func, improve aligning of typedefs
- Add sp_after_semi_for_empty

Motion is a program that monitors the video signal from one or more cameras and is able to detect if a significant part of the picture has changed. Or in other words, it can detect motion.
The program is written in C and is made for the Linux operating system.
Motion is a command line based tool. It has absolutely no graphical user interface. Everything is setup either via the command line or via a set of configuration files (simple ASCII files that can be edited by any ASCII editor).
The output from motion can be:
- jpg files
- ppm format files
- mpeg video sequences
Main features:
- Taking snapshots of movement
- Watch multiple video devices at the same time
- Watch multiple inputs on one capture card at the same time
- Live streaming webcam (using multipart/x-mixed-replace)
- Real time creation of mpeg movies using libavcodec from ffmpeg
- Take automated snapshots on regular intervals
- Take automated snapshots at irregular intervals using cron
- Sending an e-mail when detecting movement
- Sending a SMS message when detecting movement
- Execute external commands when detecting movement
- Motion tracking
- Feed events to an MySQL or PostgreSQL database.
- Feed video back to a video4linux loopback for real time viewing
- Web interface using Motion Related Projects such as motion.cgi, Kenneths Webcam Package, Kevins Webpage, X-Motion and many more.
- User configurable and user defined on screen display.
- Control via xml-rpc - small control binary to control motion while running
- Automatic noise and threshold control
- Ability to control the pan/tilt of a Logitech Sphere (or Orbit) camera
- Highly configurable display of text on images.
- High configurable definition of path and file names of the stored images and films.
Enhancements:
- V4L2 devices are now supported along with V4L2_bayer, SN9C10X, MJPEG, and UYVY.
- Device status was enhanced.
- Debian packaging was improved.
- The SWF codec for movie creation was added.
- ucvideo track pan/tilt support was added.
- A FreeBSD directory for building ports was added.

Mail Avenger is a highly-configurable, MTA-independent SMTP server daemon. Mail Avenger lets users run messages through filters like ClamAV and SpamAssassin during SMTP transactions, so the server can reject mail before assuming responsibility for its delivery.
Other unique features include TCP SYN fingerprint and network route recording, verification of sender addresses through SMTP callbacks, SPF (sender policy framework) as a general policy language, qmail-style control over both SMTP-level behavior and local delivery of extension addresses, mail-bomb protection, integration with kernel firewalls, and more.
Enhancements:
- Several minor bugs were fixed.
- The SMTPCB configuration directive was changed to give more options.
- An InsecureSASL configuration option was added by request of users.

LINGOT is a musical instrument tuner. LINGOT is easy to use, accurate, and highly configurable. Originally conceived to tune electric guitars, its configurability gives it a more general character. (Tuning another instruments has not been tested).
It looks like an analogic tuner, with a gauge indicating the relative shift to a certain note --found automatically as the closest note to the estimated frequency--, indicating that note and its frequency.
The note will be found automatically, since the program hasnt any manual function mode (indicating the note to tune manually), for mantaining its general purpose.
We recommend using the tuner in conjunction with a sound mixer for selecting the desired recording source and the signal recording levels.
Main features:
- Accurate.
- Easy to use. Just plug in your instrument and run tuner.
- Very configurable via GUI. Its possible to change any parameter while the program is running, without editing any file.
- It works in an automatic way. It isnt necessary specify the note to tune; the program guesses it.
- Its free software. It has GPL license.
- Tuning other instruments than guitars is possible. Since this program guesses the note you are playing, it can be used to tune a piano, a bass, a violin, etc.
Enhancements:
- Files have been reorganized to a more "GNU-like" structure.
- Multi-lingual support has been added.

CyberTester is a Web-based application originally designed to allow teachers to create tests/exams/assignments (consisting of single-choice, multiple-choices or keywords-based questions) and assign them to students to conduct online tests. Students can login to take these tests and review their results.
CyberTester project is suitable to be integrated into online-education services or used as a standalone Web application for a school, college or university.
This latest version of CyberTester (CyberTester2) is implemented using Java Enterprise Edition (with EJB 3), running on JBoss as it application server and MySQL as the database. CyberTester relies on JBoss to manage persistence, relationships and security.
Main features:
- Highly configurable hierarchy tree to group tests, e.g. a hierarchy of Department-Class-Subject-Topic .
- Administrator tools to create/manage users/groups and assign tests to users/groups.
- Administrator tools to create/manage single-choice, multiple-choices and keywords-matching questions using a rich text editor.
- Administrator tools to create/manage tests that contain questions. A test may have a time-limit and a time window in which it can be taken.
- Student test-taking functionality that can be presented either one question at a time or multiple questions in a page.
- Student test results that can be optionally suppressed or be viewable once a test is completed.
- Charting of students performance (very rudimentary at this stage).
- Time limits on questions and/or tests.
- Support for images and external links (via rich text editor) in questions and answer choices.
- Anonymous users who can take the same test multiple times.

JWhoisServer project is a small, fast, and highly configurable RFC 3912 compliant whois server written in Java and using RDBMS as a storage engine.