Free os software for linux

EiffelStudio is the complete Eiffel development platform for Linux/Unix/Windows/Mac OS X.

EiffelStudio is a complete development environment for the Eiffel programming language. It includes a compiler, an interactive debugger, and many modern features like a full round-trip class diagram editor or refactoring support. Eiffel is compiled through C to produce very fast executables.

EiffelStudio is highly portable and supports Linux, Microsoft Windows, Mac OS X, most flavors of Unix, and even VMS or embedded environments. Portability of applications is supported by a large set of portable libraries, including: EiffelBase (data structure), EiffelNet (network), EiffelVision (native GUI), EiffelStore (database access), EiffelParse (parsing), Gobo (XML), EiffelWeb (Web), EiffelCOM (COM), and many more.

Ossim stands for Open Source Security Information Management. OS-SIMs goal is to provide a comprehensive compilation of tools which, when working together, grant a network/security administrator with detailed view over each and every aspect of his networks/hosts/physical access devices/server/etc...
Besides getting the best out of well known open source tools, some of which are quickly described below these lines, ossim provides a strong correlation engine, detailed low, mid and high level visualization interfaces as well as reporting and incident managing tools, working on a set of defined assets such as hosts, networks, groups and services.
All this information can be limited by network or sensor in order to provide just the needed information to specific users allowing for a fine grained multi-user security environment. Also, the ability to act as an IPS (Intrusion Prevention System) based on correlated information from virtually any source result in a useful addition to any security professional.
Main features:
- Arpwatch, used for mac anomaly detection.
- P0f, used for passive OS detection and os change analisys.
- Pads, used for service anomaly detection.
- Nessus, used for vulnerability assessment and for cross correlation (IDS vs Security Scanner).
- Snort, the IDS, also used for cross correlation with nessus.
- Spade, the statistical packet anomaly detection engine. Used to gain knowledge about attacks without signature.
- Tcptrack, used for session data information which can grant useful information for attack correlation.
- Ntop, which builds an impressive network information database from which we can get aberrant behaviour anomaly detection.
- Nagios. Being fed from the host asset database it monitors host and service availability information.
- Osiris, a great HIDS.

Ophcrack is a Windows password cracker based on rainbow tables. It is a very efficient implementation of rainbow tables done by the inventors of the method.

This projetc comes with a GTK+ Graphical User Interface and runs on ,Linux Mac OS X (Intel CPU) as well as on Windows.

OS Independent Atomic Operations is a project that intends to develop an OS-independent atomic operations macro library with a common API for the C programming language as a cross-platform alternative to the uncoordinated efforts by OS developers.
As multi-core CPUs and multi-processor computer systems become more and more common, efficient synchronisation between concurrent execution units becomes more important. Atomic operations, that is operations which cannnot be interrupted, are needed to implement semaphores, reference counters and lock-free algorithms.
Operating systems generally provide atomic operation macros but there is no common API and no coordination between vendors and developers of different systems. Thus library and application developers are facing a dilemma. They can take advantage of one of the existing APIs for atomic operations but their software will then be tied to a particular operating system.
Enhancements:
- The initial release contains the Common AO API draft and a skeleton macro library.
- To complete the macros, the project will need contributors with inline assembly skills for various CPU architectures.

OpenDownload is a Firefox extension that allows you to open any file from the internet into the OS assigned program. This is similar to IEs Open or Run file download functionality.

NOTE: This does not support streaming. How it wors, is it downloads the file to your temp directory then launches it. Your operating system will then choose the default application to run it with. After 24 hours the file will automatically be deleted from your system.