Free server enterprise edition software for linux

Lineox Enterprise Linux distribution is based on source RPM packages from which Red Hat Enterprise Linux is compiled. Lineox Enterprise Linux contains all programs included in various Red Hat Enterprise Linux variations (Advanced Server (AS), Entry/Mid Server (ES), and Workstation (WS)).
It also contains programs included in separately sold Red Hat Cluster Suite and Red Hat Developer Suite. Lineox has removed and replaced all files of Red Hat Enterprise Linux which have restrictive copyright by Red Hat, Inc. Lineox has also tried to remove all user-visible references to Red Hat in Lineox Enterprise Linux.
The most notable difference between Lineox Enterprise Linux and Red Hat Enterprise Linux is the support options provided by Red Hat, Inc. Lineox, Inc. does not provide any support for Lineox Enterprise Linux with the base product.
Lineox, Inc. however plans to provide binary package updates for Lineox Enterprise Linux as long as Red Hat, Inc. provides updates for Red Hat Enterprise Linux in source package format.
Lineox has an automated system running on a cluster which builds new binary rpm packages as soon as new source code is available. New rpm packages are usually available in less than 12 hours after source code release.
After that Lineox builds Always Current Lineox Enterprise Linux disks automatically, but because of the time it takes to transfer the disk images to our web server, they are available from 2 to 12 hours after we release new packages.
Isnt Always Current Lineox Enterprise Linux untested or unreliable if it is released so often? Not really. We dont rebuild the installation environment, we just replace the installable packages with new ones.
You can even use same boot floppies or other boot media created for Lineox Enterprise Linux 4.0 to boot Always Current series Lineox Enterprise Linux. So Always Current Lineox Enterprise Linux is as tested and reliable as a system installed from "base release" and updated later. The only difference really is the work and time saved and the higher security right from the start.
Enhancements:
- Always Current Lineox Enterprise Linux 4.096 with Update 4 available. In the version 4.096 the installation environment is rebuilt, so it offers better hardware support during the installation. See the release notes for full information. The x86_64 release requires either AMD Opteron or Athlon64 CPU based computer. Some new Intel Xeon and Pentium IV processors with EM64T (Extended Memory 64 Technology) will also be able to run this version.

eGroupWare is a multi-user, web-based groupware suite developed on a custom set of PHP-based APIs.
Main features:
- email
- addressbook
- calendar
- infolog (notes, to-dos, phone calls)
- content management
- forum
- bookmarks
- wiki
Version restrictions:
- EGW does not need to be compiled. EGW is composed only of PHP, HTML and image files
- EGW needs a Database server. MySQL or PostgreSQL or MSSQL preferred. Can be local or remote.
- EGW needs a php4 enabled web server. Apache1.3.x with PHP4.3.x preferred.
- EGW may need an e-mail server. Can be local or remote and IMAP or POP.
- Please read the requirements and install-how-to in the download area.
Enhancements:
- addressbook completly rewritten (Group-addressbooks, Organisation-views, improved LDAP support)
- new fully integrated tracker application used by the project itself since some time
- new imap backend and many improvments for FMail
- Gallery2 port for eGroupWare
- many improvments in nearly all applicatons

Linux is a UNIX like Operating System, famous for its reliability and security features, that runs on all kinds of computers. Linux was started by Linus Torwalds in 1991. The Linux Kernel and most applications it offers, are mostyl GPL licensed, called Open Source.
StartCom Enterprise Linux operating systems, are based on the RedHat Enterprise and Fedora source code each modified with reliability, security and efficiency in mind, to fit the tasks assigned to each flavor of StartCom Linux.
View the Screenshots to get an idea how StartCom Linux looks.
Enhancements:
- The newest StartCom Enterprise Linux AS-5.0.0 joins a series of successful and reliable operating systems build and distributed over the last three years by StartCom Ltd. This latest release provides full support for virtualization - the running of multiple instances of operating systems on one physical hardware unit. Depending on the installation preferences, AS-5.0.0 can function as server platform as well as advanced client workstation.
- StartCom Linux is using the latest in open source technology and with its known stability, reliability and security allows for mission-critical server deployments. The Global File System (GFS) provided in AS-5.0.0 allows the building and maintaining of high availability computer clusters, mainly used for data centers.
- The natural support of the XEN hypervisor, makes the running of multiple virtualized server instances possible. The benefits of server virtualization are consolidation, increased utilization, an ability to rapidly provision and start a virtual machine, and increased ability to dynamically respond to hardware failures by moving a virtual machine to different hardware.
- The enhanced usability of the desktop applications makes AS-5.0.0 also an excellent choice for client and development workstations. Many well known products such as Firefox, OpenOffice and Eclipse IDE are provided already during installation as possible options.
- StartCom Enterprise Linux AS-5.0.0 codenamed "Kishuf" is available for Intel i386 and AMD x86_64 architectures. DVD ISO images can be downloaded for free or ordered for a nominal fee. Alternative installation options via network or harddrive are also available.

Enterprise File Exchange (EFX) slots in where email file attachment limits stop your users from sending those important files to a contact.

In the EFX world, the user visits the EFX site, uploads the file, enters the receivers email address and lets the system notify the receiver that theres a file waiting for them, via a simple email message.

Senders need to sign up, and the EFX system only allows transfers between internal users (those with addresses in an approved list) and external users, never external to external.

It is written in Python, using the Pylons framework.

This project is licensed under the GNU GPL version 3.

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.