Free portal server software for linux

iConnect Portal Server is a data presentation and delivery system for building enteprise portals over the iConnect Web Application Server.
Users of the platform have a customized single point of access to the companys information system and resources.
Main features:
- Grid / slots / blocks logic
- Modular structure
- Encapsulation of pages, blocks and classes inside modules
- Separation between view and model
- PHP as template engine
- Localized templates
- Grid themes
- Sessions

Collaborative Portal Server (CPS) is the most complete Open Source solution available for building ECM applications.
CPS comes also as a user-friendly application for entreprise-grade content management with many collaboration features.
CPS is the collaborative web content management solution for Zope.
CPS is built on top of the powerful Zope application server.
This web portal aims at unifying and providing a common platform to the CPS community.
CPS is backed by Nuxeo and a community of contributors (Chalmers University, Infrae, etc.) and is released under the GPL.
CPS is an extensive collaborative Web content management system (CMS) implemented on top of Zope and the CMF, that enables organizations to easily, quickly and efficiently implement collaborative portals (intranet, extranet or internet) and workflow- oriented business applications.
Main features:
- Collaborative work and publication spaces (you may need to be authenticated with the right access level to access these URLs)
- Document versionning, that allows a document to be published in one version and still worked on in another one
- Group-based, directory-backed user and roles management
- A configurable Portal interface, with a web- and accessibility-standards compliant default look and feel (you will need to be authenticated with the right access level to access this URL)
- Notifications on many kinds of events happening on the system
- An (optional) WYSIWYG editor for portal look and feel (just install CPSSkins in your CPS instance using the ZMI)
- Many user-level services, like a Webmail, Forums, shared Calendars, Newsletters and Mailing Lists, etc.
- Many powerful developers- and webmaster-level services, including support for creating your own document types, your own workflows, etc.

X personal web server is a personal Web server that sits in your desktop notification area (as a tray icon).

X personal web server is a (much) simpler cousin of KPF, but doesnt require kicker and uses the GTK 2 library for its minimal user interface.

Darwin Calendar Server provides a CalDAV server.

The Darwin Calendar Server is a standards-compliant server that allows multiple users to collaboratively share calendaring information. It provides a shared location on the network to store schedules, and allows users to send each other and manage invitations.

In order to provide interoperability with multiple calendaring clients, the server implements the CalDAV protocol, which is an extension of WebDAV, which is in turn an extension of HTTP.

X Portal project is a powerful CMS (content management system) which can handle multiple language files.
English and Hungarian languages are included in the basic package. The engine was taken from phpnuke-textportal.
Enhancements:
- autoHALT automatically logs out when the browser is closed.
- Security was enhanced with lots of new security tools.

Video server is a streaming video server which feeds a Java applet/application for display. The updates are rather slow, somewhere in the 10 frames/second range on a PIII. The server is written in Bigloo scheme and C. The client is written in Java.

To bring up the video server you have to do the following.

./vs --channel 25 --sd 12 --input 0

./vs --help
for more options. (This seems broken with the newest version of bigloo .... )

How to bring up a java client to connect to a server:
Insure that video/java is in your classpath, and invoke

java vpanel servername

Prey tells the story of Tommy, a Cherokee garage mechanic stuck on a reservation going nowhere. His life changes when an otherworldly crisis forces him to awaken spiritual powers from his long-forgotten birthright. Abducted along with his people to a menacing mothership orbiting Earth, he sets out to save himself and his girlfriend and eventually his planet.
Prey is serious, dark story, based on authentic Cherokee mythology. Themes of sacrifice, love and responsibility are explored and the story dives into emotional territory not yet explored by similar games. You will find nothing familiar with this game.
Overview
In Prey, gamers enter an unpredictable world where nothing can be taken for granted. Most of the game takes place within a living ship, a giant entity that can sense and react to Tommys presence.
Prey makes use of Josephs Campbells renowned story structure, "The Heros Journey," for guiding the main character arc. Campbells extensive work on mythological story progression was made famous when George Lucas used it for Luke Skywalkers story arc in the original Star Wars.
Main features:
- Built on an enhanced Doom 3 engine, the most impressive 3D engine used in a released game.
- Portal technology adds a new dimension to gameplay, allowing enemies to appear out of thin air and create new and completely original puzzles and gameplay styles.
- Several never-before-seen gameplay elements such as Spirit Walking, Wall Walking, and Deathwalk.
- Highly organic, living environment that itself can attack Tommy.
- A deep, emotional story of love and sacrifice.
- Tommy has a sidekick, a spiritual hawk that can help him fight enemies and decipher the alien language of the living ship.
- Multiplayer game support that takes advantage of the unique gameplay styles in Prey.