Open Source Servers

Open Source Streaming Server
the open source version of Apple's QuickTime Streaming Server technology that allows you to send streaming media to clients across the Internet using the industry standard RTP and RTSP protocols. Based on the same code base as QuickTime Streaming Server, Darwin Streaming Server provides a high level of customizability and runs on a variety of platforms allowing you to manipulate the code to fit your needs. QuickTime Streaming Server (QTSS) is Apple's commercial streaming server delivered as part of Mac OS X Server. QTSS provides users with enhanced administration and media management tools as a result of the tight integration with Mac OS X Server; these tools are not available as part of the open source project. Technical support is available for QTSS as part of the AppleCare support plans provided for Mac OS X Server and Xserve.
Novell - Open Enterprise Server
Open Enterprise Server offers a unique combination of options: it includes both NetWare, the long-standing leader of secure networking services, and SUSE Linux Enterprise Server, an award-winning open-source server for delivering business-level applications. You can choose to use NetWare, SUSE Linux or a combination of both technologies. And no, you won't have to rip out existing infrastructure. You can deploy any or all of the included technologies - it's all up to you. If you're looking for an exit strategy from restrictive Microsoft* technologies, Novell Open Enterprise Server�with its easy-to-use migration tools�provides the foundation for a compelling server-to-desktop alternative.
Netline debuts open source server
Netline Internet Service rolled out a new version of its Open-Xchange Server that features improved compatibility with Microsoft's Outlook, and complemented that offering by also debuting a version of the product designed specifically for small and medium-size businesses (SMBs). Open-Xchange is intended to let administrators migrate and integrate products over to an open source environment so they can create applications without having to change over basic infrastructure components such as a database, e-mail server, or message transfer agents. As an example, a user can retain a favored mail client such as Outlook but also have access to an open source mail client such as Kontact.
Sun warms to open-source server software
Sun is considering making its Java Enterprise System server software open-source, John Loiacono, Sun's executive vice president of software, said in a conference call with reporters Tuesday. "It's something we're looking at closely right now. It's absolutely in our interest to go pursue that." Sun's open-source Solaris move is widely seen as a response to competitive pressure from open-source Linux, which has attracted thousands of volunteer and paid developers. For server software, IBM, Microsoft, BEA Systems and others provide plenty of competitors for Sun's JES, which is used for tasks such as hosting Web pages, managing e-mail, tracking passwords and running Java business software.
Poptop - The PPTP Server for Linux
GeoServer is an open source, standards-based server of geospatial information, connecting spatial databases and files to the variety of clients that make up the 'geospatial web', and allowing user contributed editing through standard web-based interfaces. Latest updates... Improvements for this release include an upgrade to GeoTools 2.2.x, and some performance tuning on the toolkit, with users reporting at least a 60-70% speed increase against PostGIS. There are also great user contributed fixes to create PDF maps from WMS and to adjust headers to allow caching, which can optimize GeoServer for tiling web mapping clients like Google Maps or OpenLayers.
The OpenVZ
OpenVZ is an Operating System-level server virtualization solution, built on Linux. OpenVZ creates isolated, secure virtual environments � VEs (otherwise known as virtual private servers, or VPSs) on a single physical server enabling better server utilization and ensuring that applications do not conflict. Each VPS performs and executes exactly like a stand-alone server; VPSs can be rebooted independently and have root access, users, IP addresses, memory, processes, files, applications, system libraries and configuration files.
MailWasher Server
MailWasher Server is an open-source, server-side junk mail filter package for businesses. MailWasher Server differs from other open-source server anti-spam packages in that it offers a polished, well-integrated web interface and built-in quarantine management facilities. MailWasher Server is easier for administrators to set up and manage and easier for users to use the product on a day-to-day basis. MailWasher Server fully supports Windows Server/Exchange Server systems, in addition to Unix-based systems such as Linux and Solaris.
ZOPE
Zope is an open source application server for building content management systems, intranets, portals, and custom applications. The Zope community consists of hundreds of companies and thousands of developers all over the world, working on building the platform and Zope applications. Zope is written in Python, a highly-productive, object-oriented scripting language.
Midgard CMS
Midgard CMS is an Open Source Content Management System built on top of the Linux, Apache, MySQL and PHP (LAMP) platform. It provides a reliable, powerful and internationalized set of tools for building web sites and networked applications. Midgard utilizes PHP as the web scripting language and provides integration interfaces on Java and C layers. Midgard's unique architecture enables it to provide services like single sign-on and replication. With these capabilities and the integrated full-text search system, Midgard is an excellent match for information-rich web sites and intranets.
The FreeRADIUS Server
The FreeRADIUS Server Project encompasses more than just a RADIUS server. The related software includes a PAM authentication module, and an Apache 1.3 and 2.0 authentication module. The server comes with a PHP-based web user administration tool, called dialupadmin. The RADIUS server has more features and is more flexible than any other free software RADIUS server, and many commercial servers. Most commercial servers are distributed as a "base" system ($), and an "enhanced" version ($$) with more features. FreeRADIUS has all the features of a commercial "enhanced" server, without the associated cost. To support the demanding requirements of a modern RADIUS server, FreeRADIUS features more than 50 vendor-specific dictionary files. It ships with support for LDAP, MySQL, PostgreSQL, Oracle databases. It supports EAP, with EAP-MD5, EAP-SIM, EAP-TLS, EAP-TTLS, EAP-PEAP, and Cisco LEAP sub-types. It supports proxying, with fail-over and load balancing.
Funambol Projec
Funambol is open source mobile application server software that provides push email, address book and calendar (PIM) data synchronization, application provisioning, and device management for wireless devices and PCs, leveraging standard protocols. For users, this means BlackBerry-like capabilities on commodity handsets. Funambol is also a software development platform for mobile applications. It provides client and server side Java APIs, and facilitates the development, deployment and management of any mobile project.
The osTicket
osTicket is a widely-used open source support ticket system. Plain and simple it is a lightweight feature packed support ticket tool written mainly using PHP scripting language. An attractive alternative to higher-cost and more complex customer support systems; simple, lightweight and easy to setup and use. The best part is, it's completely free. osTicket seamlessly integrates all tickets created via email and web-based form with a simple web interface. Easily manage, organize and archive all your support requests. Your clients will also be able to view tickets status and history online.