Free capable and limitation of computers software for linux

Relax and Recover (abbreviated rear) is a highly modular disaster recovery framework for GNU/Linux based systems.
The disaster recovery information (and maybe the backups) can be stored via the network, local on hard disks or USB devices, DVD/CD-R, tape, etc. The result is also a bootable image that is capable of booting via PXE, DVD/CD and tape (OBDR).
Main features:
- Focus on Disaster Recovery
- Modular concept
- For Linux and other Unix-like operations systems
- No external dependancies - use only standard software supplied with the distribution
- encryption (optional) - openssl ?
- Linux: kernel > 2.6 supported (no kernel 2.2/2.4 support !)
- User friendly - minimal output, use log file for error messages and details
The aim is to make rear as least demanding as possible, it will require only the applications neccessary to fulfill the job rear is configured for. All other applications will be copied to the rescue system if they are present.
Enhancements:
- Added SELinux suppport for NETFS Did restore tests with NETFS - see video 2006-08-31 GSS
- Added NETFS support BACKUP=NETFS 2006-08-30 GSS
- finally fixed bug in mkrescue-functions.sh about c0d0p 0 (DEVwP=1)
- Added RHEL ES/AS support 2006-07-21 GD
- start the NFS/CIFS tar backup-restore cyclus
- added support for Software RAID

Opcion Font Viewer is a free font viewer written in Java that allows you to view both installed and uninstalled TrueType fonts on Windows, Linux, Unix or Mac.
The main focus of Opcion is to allow you to view your uninstalled fonts so that you install only the fonts you want and keep your system memory free of fonts you dont want.
As you may have experienced, installing the brand new 1000 fonts font pack you just bought on your Windows, Linux, Unix or Mac computer can lead to slow-downs when starting the computer and when loading other programs.
The slow down occurs because the Operating System and certain programs (e.g. word-processors, email clients, graphics editors) need to load all system fonts so that they can be made available to you at any time. This is where Opcion comes in.
Opcion was written to handle the viewing of large font collections, therefore only fonts that you are currently viewing are stored in memory. Although the amount of physical memory you have will effect how many fonts you can view at a time, it will no longer be a limitation to you making use of your entire font library.
Another problem with most Operating Systems default font viewers is that while they are capable of viewing fonts, the default Windows/Linux/Unix font viewers only allows you to view fonts that are already installed and one at a time. Opcion allows you to view TrueType fonts located anywhere and allows you to view system fonts as well.
To help you pick the best font for the job, whether it be for your assignment, project logo or webpage, Opcion provides a list view of either system or other/uninstalled fonts so you may see how a font looks compared to other fonts in your collection.
When you see a font that you feel suits your current job you can simply click on it in the list view and it will be added to a favourites list that can then be saved for future reference or used to install only the fonts you want.
For viewing fonts, seeing how they would appear applied to your name/logo/tagline, and keeping track of which fonts best suit the job is the purpose of Opcion Font Viewer. Opcion allows you to view both installed and uninstalled fonts in different views depending on your needs. Written in Java, Opcion will work on all platforms that the Java Runtime Environment supports (which includes Windows, Mac, Solaris & Linux).
Opcion Font Viewer provdies a default view that allows you to view one font at a time, and a list view which allows you to view multiple fonts at a time. By clicking on fonts you like in the list view you are adding fonts to a faviourties list that Opcion keeps for you. The faviourites list can then be saved for future reference or used in finding out the file names of fonts you wish to install.
Main features:
- Viewing of installed/uninstalled fonts.
- List view of installed/uninstalled fonts.
- Adding/removing of favourite fonts.
- Saving of favourite fonts.
- Customizable sample/display text.
- Customizable font size.
- Customizable font properties (bold, italic, etc.) in sample text area.
- Changeable fonts displayed per page in List View.
Execute Opcion Font Viewer
To execute Opcion Font Viewer in Windows, download the EXE version. For Linux users use the command "java -jar Opcion_v1.1.1.jar" in console/terminal/shortcut.
Exception in thread "main" java.lang.UnsatisfiedLinkError: /usr/java/j2re1.4.1_02/lib/i386/libfontmanager.so: libstdc++-libc6.1-1.so.2: cannot open shared object file: No such file or directory
This error occurs due to backwards compatibility issues with the Java Runtime and libstdc. To fix this problem for RedHat 9.0 install the RPM file compat-libstdc++-7.3.2.96.118.i386.rpm, which can be found on disc 1 of the downloadable distro. For other Linux distributions check rpmfind.net for libstdc++-libc6.1-1.so.2 to see what package you need to install.
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : 11 occurred at PC=0x4CAEE920 Function=(null)+0x4CAEE920 Library=/usr/local/lib/SunJava2-1.4.2/lib/i386/libfontmanager.so
This error appears to be a problem with Sun Microsystems Java implementation for Linux, the real cause for this crash is still being investigated. There are no solutions to this problem yet.
Opcion crashes during execution when using Blackdown Java Virtual Machine.
Opcion Font Viewer was programmed for Sun Microsystems JVM, and it uses Suns Java API extensively. Thus, it is highly recommended that you use the latest Java Runtime Environment instead of other JVMs.
Enhancements:
- Added sorting to other fonts list.

Apple Disk Transfer ProDOS (or ADTPro for short) transfers diskettes and logical disk images between Apple ][-era computers and the modern world. If youre familiar with the original ADT, ADTPro extends ADTs reach by working with more logical disk formats, drive types, communications devices, and host operating systems.
Main features:
- Compatibility with any device ProDOS can read
- Compatibility with any Apple ][ (or clone) computer with 64k memory
- Compatibility with many logical disk image formats: .DSK, .PO, .NIB, 2IMG
- Server compatibility with original ADT client program
- Server compatibility with Windows, Mac OSX, Linux, and probably Solaris
- Ability to bootstrap an Apple ][ from bare metal over serial or cassette ports
- Ability to send floppies in "batch" mode without having to name each one
Server
The server program runs on a computer capable of running Java. Depending on how you want to connect to your Apple, you might also need a serial port and cables, an Uthernet card for your apple, or a couple of audio patch cables. The server offers a compact user interface that shows what communications are taking place between the host and the Apple ][.
The servers primary role is to send and receive disk images as requested from the client. But if you have recently acquired an Apple and a disk drive, and you have no software for it - youre in a bit of a tricky situation if you want to move software from the Internet all the way to your shiny new Apple. ADTPros server can help get you get bootstrapped.
Client
The client side runs on the Apple ][. It handles most of the user interaction. When choosing disks/volumes to transfer, anything that ProDOS can see is fair game. Transferring data occurs with a 20k buffer on the Apple, so all transfers are broken up into 20k chunks. A progress indicator shows how far it is into the current chunk, as well as a running count of the total progress.
Enhancements:
- This release has been enhanced with Jean-Marc Boutillon (Deckard)s FASTDSK fast Disk II reading routines.
- This results in a speed boost of 25%-33% for Disk II to host transfers.
- Bootstrapping operations have been reduced, as there is no longer a dependency on ProDOS BASIC.

Eiffel Windowing System (EWS) is an Eiffel library which provides a small, stand-alone windowing system.
The current implementation is based on the Simple Directmedia Library (SDL), but the design allows other graphical backends.
Besides the basic windowing system functionality (overlapping windows, event passing and handling, graphical operations, input froum mouse and keyboard), a small widget-toolkit is included (buttons, scrollbars, labels, etc.).
Its specially well suited for applications where a fine degree of control over presentation and timing is required. Multimedia applications and games are the usual examples.
Main features:
- Transparency (alpha channel) support
- Can load most standard image formats via libSDL_image (PNG, JPEG, GIF, Windows bitmap...)
- Mostly coded in OO Eiffel. Only a small C module handling SDL interface. All the API is OO.
- Complete control over application appearance.
- Simple design, easily extendible for new event kinds, new widgets, etc.
- Quite fast even in old slow computers (if you compile at require_check level or lower).
- Licensed under the LGPL
Supported widgets:
- The UI toolkit coming with EWS includes
- Buttons: push buttons triggering commands
- Toggle buttons: controls that toggle its state (they may be used to implement checkboxes and radio buttons)
- Text entries: One line text entries, handling cursor keys. Selection not implemented yet (the core is selection capable, but the UI not).
- Labels: A simple text label
- Multiline labels: Labels spanning several lines with optional word-wrapping
- Marquees: Like a label, but scrolling a longer message sideways
- Images: A fixed image
- Animations: An animated area of the screen
- Drag handles: An area that can be dragged to move other window. Useful as titlebars.
- Scrollbars: The usual thing, with buttons at the end and a slider which can be dragged. (only vertical scrollbar implemented now)
- Adding widgets to the toolkit is very simple

NetCalendar is a network capable and mostly UNIX /usr/bin/calendar database compatible Calendar application programmed in Java.

NetCalendars initial motivaion was a programming project at the Aachen University of Applied Sciences for the object oriented programming class. But it became much more than just that!

Password Creator is a great tool to generate passwords with criteria like uppercase letters, numbers or even specified characters.
It has virtually no limitation on the pasword length and the password quantity or the characters to use.
Enhancements:
- Fixed the excellent rating bug when one character length.
- Fixed pronoucable passwords to not start with two vowels.

Java3D chess project is a Java applet that allows you to play chess.

Java 3D Chess is a chess program with uses Java 3D. You can play the game on any computer capable of using Java.

You can play Java 3D Chess agains yourself or a friend (on the same computer).

Maybe inthe near future you can play against other as well.