Free enterprise edition software for linux

NetBeans IDE is a full-featured integrated environment for Java application developers.
Java programmers require a fast and fully-featured Integrated Development Environment (IDE) with support for Java(TM) compliant applications for accelerating development across all major OS platforms.
NetBeans.org provides an open source, high performance, modular, extensible, multi-platform Java IDE to accelerate the development of Java applications, web services and mobile applications.
The NetBeans IDE 4.1, which was released in May 11, 2005, includes Java 2 Platform, Enterprise Edition (J2EE) development capabilities. This new release allows developers to not only develop applications in the web tier but also includes Enterprise JavaBeans (EJBs) and web service development capabilities.
NetBeans IDE 4.1 is a single platform with out-of-the-box development capabilities and support for enterprise (J2EE 1.4) applications and web services, mobile/wireless Java 2 Platform, Micro Edition (J2ME) applications and services and desktop Java 2 Platform, Standard Edition (J2SE) applications. The robust open source Java IDE, has everything that Java Software Developers need to develop cross-platform desktop, web and mobile applications straight out of the box.
When you download the NetBeans IDE, you get a modular, standards-based development environment with all the key functionality in one download, rather than a series of additional plug-ins. Write, compile, debug and deploy Java programs for the Solaris, Windows, Linux and Macintosh platforms.
Main features:
- New Navigator component facilitates browsing and navigating around classes.
- Browse and configure project classpath using the Libraries node in the Projects View.
- Use automatically generated Debug and Compile Single File actions for projects with existing build scripts.
- Set up projects with multiple source roots.
- Create a J2EE application, automatically add EJB?* and Web modules, then deploy the application.
- Deploy an EJB module as a stand-alone or packaged in a J2EE application. Or, create a Web module, generate calls to EJBs and deploy the Web module either as a stand-alone Web application or packaged in a J2EE application.
- Create Session Beans, Entity Beans and Message-Driven Beans. Entity Beans can be created using an existing database schema.
- Create, register and test Web Services.
- Visually configure your EJBs, Web Services and Web Components.
- Validate your applications using the J2EE Verifier.
- Use the integrated Java BluePrints Solution Catalog as a powerful learning resource.
- J2SE 5.0 "Tiger" Language Support - We support the new Java language constructs such as enums, generics, metadata annotations, autoboxing, static imports and others. These new constructs are supported when doing editing, building, refactoring, etc. of your applications. This support is available without any additional setup when running on J2SE 5.0.
- Project System based on Apache Ant - NetBeans 4.0 was the first IDE to base its projects system entirely on Apache Ant, allowing developers to easily share build scripts between teams and ensure that automated builds run the same as builds within the IDE. There is no vendor lock-in and no proprietary file formats.
- Refactoring technology which provides simplified code maintenance for developers.
- Visual enhancements to lay out MIDlets workflow; plus, design and code the GUI using a drag and drop feature (Available in NetBeans Mobility Pack).
- End-to-end support for enterprise applications with wizard support for creating Java? 2 Platform, Micro Edition (J2ME?) and J2EE applications. This updated support enables quick creation of J2ME client/server applications (Available in NetBeans Mobility Pack).

Sun Java Platform Enterprise Edition (Java EE) is the industry standard for developing portable, robust, scalable, and secure server-side Java applications.

Building on the solid foundation of Java SE, Java EE provides Web services, component model, management, and communications APIs that make it the industry standard for implementing enterprise class service-oriented architecture (SOA) and Web 2.0 applications.

Tresys Brickwall software makes it easy to manage the power of SELinux. Tresys Brickwall is built on an enhanced version of the Reference Policy that "targets" network facing applications for containment. SELinux forms a firewall around each application, protecting applications from each other and preventing an application from damaging the kernel. Tresys Brickwall provides an intuitive graphical user interface (GUI) that allows administrators to configure access to network resources at the application level. Security options (SELinux Booleans) can also be set on a per-application basis. Advanced users can even include raw SELinux policy for additional customization.

The Tresys Brickwall Professional and Enterprise Editions add targets for several applications not covered by the standard Reference Policy, and they allow administrators to define custom targets for applications not in the built-in target list. These editions also allow administrators to extend targets file access permissions.

The Tresys Brickwall Enterprise Edition adds a first-ever network management capability to SELinux. A central Tresys Enterprise Manager securely manages the configuration for all of the SELinux machines across an enterprise. Groups of client machines can be defined and a configuration can be managed and applied to all of the machines in that group. The Tresys Enterprise Manager also works with Tresys Razor™ products to manage enterprise applications like IBMs WebSphere and DB2.

Red Hat Linux is probably the best-known Linux distribution. Red Hat Linux is well-supported by commercial software, and tends to be easy to install and have good hardware support out of the box.

Compaq has taken over the maintenance for Red Hat for their Alpha processor - theres a link to their Alpha Red Hat page below.

Red Hat 9 is the last version of Red Hat Linux per se, and Red Hat will stop supporting it soon. Instead they offer a commercial Linux distribution, "Red Hat Enterprise Edition", and a free distribution, "The Fedora Project".

Horde Groupware Webmail Edition is a free, enterprise ready, browser based communication suite. Users can read, send and organize email messages and manage and share calendars, contacts, tasks and notes with the standards compliant components from the Horde Project.
Horde Groupware Webmail Edition bundles the separately available applications IMP, Ingo, Kronolith, Turba, Nag and Mnemo.
The project can be extended with any of the released Horde applications or the Horde modules that are still in development, like a file manager, a bookmark manager, a forum or a wiki.
Main features:
- IMAP and POP3 webmail client
- Message filtering
- Message searching
- HTML message composition with WYSIWIG editor
- Spell checking
- Built in attachment viewers
- Encrypting and signing of messages (S/MIME and PGP)
- Quota support
- Keyboard navigation
- Full character set support for folders names and email messages
- Conversation view of all messages in a thread
- Folder tree in left menu pane
- Message previews in mailbox view
- Downloading of message attachments in a ZIP file
- Fetching of messages from external email accounts
- Flexible, individual alias addresses
- IMAP folder subscriptions
- Shared IMAP folders
- Graphical emoticons
- Support for mailing list headers
- Forwarding of multiple messages at once
- Attachments sent as links
Enhancements:
- A local arbitrary file deletion vulnerability and XSS vulnerabilities in the Webmail search screen and thread view have been fixed.
- Displaying of PGP messages has been improved.
- mailto: links in HTML email messages are turned into IMP compose links.
- The Oracle session handler has been rewritten.
- Validation of some email distribution lists has been fixed.
- Compatibility with Internet Explorer 7 has been improved.
- Blacklists and whitelists when using the IMAP driver have been fixed.
- Many small bugfixes and improvements have been made.