Free matures software for linux

TurboGears project is based on the agile, mature, cross-platform, well-documented, easy and fun Python programming language.
Python makes it super simple to get started with TurboGears, whether youre running Windows, Linux, Mac OS X or even a cell phone. OK, so youre probably not going to want to run a web server on your cell phone.
Any way you slice it, youll be amazed how quickly you get started!
Installation:
Even though you dont have Easy Install yet, you can still take advantage of it. Instead of one-command installation, it will be two-step installation. And, youll have Easy Install for the next update!
The instructions below will install into the primary system locations for Python modules. On many systems, this requires superuser access. So, performing the installation below will require you to enter your password. If your system does not have sudo installed or configured properly, you can su to the superuser account and then run the command.
Note that on some Linux systems (Ubuntu, for example), you may need to install a "python-dev" packages in order for everything to compile correctly.
- Download the ez_setup.py script.
- Run sudo python ez_setup.py -f http://www.turbogears.org/download/index.html --script-dir /usr/local/bin TurboGears
Enhancements:
- Much better on-line documentation was provided.
- Internationalization is now also available for the JavaScript files.
- When using SAprovider for identity management, passwords are now encrypted on the fly if a identity.saprovider.encryption_algorithm is set to md5 or sha1 in app.conf.
- An alternative quick-start model that uses Elixir (using -e switch) is proposed.
- A similar one will become the default in 1.1.

kingate library is an interface to CGI, conveniently enwrapped into c++ classes. You dont want to try it for your project, yet, due to its incompleteness, unless you need it as a dependency for the other project. Here is a brief overview of what it is lacking and why you dont want to use it:
- It is not a mature product and isnt heavily tested.
- It is likely not very portable, yet (it does work on FreeBSD though).
- It does not support file upload (although does not prevent software based upon it from implementing it on its own.
- It does not employ any buzzword-technologies like java, corba or whatever people go crazy about.
- Must be more, but I cant remember right away.

Excalibur is an open source software project of The Apache Software Foundation. Our primary product is a lightweight, embeddable Inversion of Control container named Fortress that is written in java.

Inversion of control, also known as the hollywood principle ("dont call us, well call you"), is a simple but powerful concept. The idea is that we dont "wire up" all the pieces that make up an application (the "components") by writing lots of this-component-uses-that-one-like-so code, nor do we use some kind of lookup directory (like JNDI, for example) where each component decides what components to interact with itself. Instead, we instruct a smart piece of software, the container, to tell the components how to interact.

Fortress (and also its predecessor, "ECM") is such a container. It is lightweight, by which we mean that it doesnt need a lot of resources, take a lot of disk or memory, or impose all sorts of demands on its environment. Fortress is also embeddable, by which we mean that you can use fortress inside just about every java environment. More concretely, you can use it as the basis of a large standalone development platform (like the Keel project), at the core of a servlet-based web application (like Cocoon) or even as the basis of a GUI application (like GuiApp).

Fortress knows how to manage components that have been developed using a rigid lifecycle contract called Avalon-Framework. In the next upcoming release, fortress will also be able to manage ordinary javabeans, and support for other kinds of Inversion of Control are planned.

Besides providing fortress, excalibur also provides a small library of very useful components. We also distribute some of the libraries used to build fortress (and some other containers) seperately. This selection of libraries is called containerkit.

So why is excalibur an interesting project?

Heres a few partial answers.

good code. Code that comes from the mature avalon project (everything that used to be branded as "Avalon Excalibur" and "Avalon Fortress"). This includes two lightweight Inversion of Control containers. One of these powers, among other things, Cocoon. The other ("fortress") is the basis of projects like Keel. Excalibur also includes powerful and mature reusable "components" and "libraries", handling tasks ranging from thread management to component pooling to (URI-and-similar-) source resolving.

smart developers. Most of these people are or have been active in the avalon project in various roles. Several of them are apache members. Together they have loads and loads experience under their belts related to inversion of control development. In fact, Im confident to say this list includes some of the biggest experts on inversion-of-control-style container development.

exciting community. Several open source and commercial projects (both at apache and elsewhere) depend on and contribute to the excalibur project. A strong team of enthousiastic developers (with strong ties to several other projects in the same problem domain) has various big and small plans with excalibur. One of the leading open source organisations in the world, The Apache Software Foundation, is hosting the project, providing insight, advice, infrastructure, legal backing, a time- and battle-proven development process, and much more.

RocketSled is a object-oriented, full featured, Web-based application development framework for PHP 5.
Its packages include Active Record and Object Relational Mapping, an advanced XML-based templating language, and a multi-user management suite.
Main features:
- Completely Object Orientated
- Flexible program structure
- Package-centric applications for easy re-deployment
- Integrated XML based templating language (RSML)
- XML based form validation engine (FormML)
- Does not require database for basic install
- Extra packages (currently 2 available) for ActiveRecord and user management
- ActiveRecord package with automated data tainting and universal pagination
- MIT License
Enhancements:
- All packages are now included in the same CVS repository for more basic version numbering, and the system has increased in stability and is more mature.
- It has also had numerous bugfixes and feature enhancements.
- Although the documentation is still very lacking, there is a Getting Started tutorial that will hopefully allow people to start looking at the framework more seriously.

Apache Portals is a collaborative software development project dedicated to providing robust, full-featured, commercial-quality, and freely available Portal related software on a wide variety of platforms and programming languages.

This project is managed in cooperation with various individuals worldwide (both independent and company-affiliated experts), who use the Internet to communicate, plan, and develop Portal software and related documentation.

Modern software is complex and expensive, which has motivated many companies to invest in enterprise portals as a mechanism by which they can manage information in a cohesive and structured fashion.

Portals offer many advantages over other software applications. First, they provide a single point of entry for employees, partners, and customers. Second, portals can access Web services transparently from any device in virtually any location. Third, portals are highly flexible; they can exist in the form of B2E intra-nets, B2B extra-nets, or B2C inter-nets. Fourth, portals can be combined to form a portal network that can span a companys entire enterprise system, allowing for access both inside and outside the firewall.

Portals have many advantages, which is why they have become the de facto standard for Web application delivery. In fact, analysts have predicted that portals will become the next generation for the desktop environment.

Portals distinguish themselves from other software systems because they provide the ability to integrate disparate systems and leverage the functionality provided by those systems. As such, they are not mutually exclusive, and do not force you into an either-or decision vis-a-vis existing software systems. This point is of paramount importance, particularly when you consider the fact that Web services are destined to fuel the explosion of Web applications. Since portals can access any Web services, the conclusion is inescapable: portals provide a unique opportunity to leverage the functionality of nascent technologies as well as mature, well-established software systems.

SVNManager is a webbased tool to administer a Unix Apache WebDAV Subversion repository server.

As stated on their website:

"The goal of the Subversion project is to build a version control system that is a compelling
replacement for CVS in the open source community."

Subversion has matured and our organisation has found more purposes to create Subversion repositories than just for source code. Therefore it seemed nice to me to create a web based Subversion administration suite, with which can help you at:

- Create, remove, load & dump repositories
- Manage user accounts for access to the repositories
- Manage groups for access to the repositories
- Invite users by email to create an account on the server

I hope it can be useful for you and your organization.

SpamAssassin project is a mature, widely-deployed open source project that serves as a mail filter to identify spam, also known as unsolicited commercial email (UCE)
SpamAssassin uses a variety of mechanisms including header and text analysis, Bayesian filtering, DNS blocklists, and collaborative filtering databases. SpamAssassin runs on a server, and filters spam before it reaches your mailbox.
Main features:
- Wide-spectrum: SpamAssassin uses a wide variety of local and network tests to identify spam signatures. This makes it harder for spammers to identify one aspect which they can craft their messages to work around.
- Free software: it is distributed under the same terms and conditions as other popular open-source software packages such as the Apache web server.
- Easy to extend: Anti-spam tests and configuration are stored in plain text, making it easy to configure and add new rules.
- Flexible: SpamAssassin encapsulates its logic in a well-designed, abstract API so it can be integrated anywhere in the email stream. The Mail::SpamAssassin classes can be used on a wide variety of email systems including procmail, sendmail, Postfix, qmail, and many others.
- Easy Configuration: SpamAssassin requires very little configuration; you do not need to continually update it with details of your mail accounts, mailing list memberships, etc. Once classified, site and user-specific policies can then be applied against spam. Policies can be applied on both mail servers and later using the users own mail user-agent application.