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Linux 2003
Conference and Tutorials
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Thurs 31st July - Sun 3rd August 2003
Edinburgh, Scotland

Sandro Zic - ZZ/OSS Information Networking

CONESYS: The COntent NEtwork SYstem

Paper (PDF) and Paper (sxi) and Paper (HTML)

CONESYS is the Open Source COntent NEtwork SYStem for peer-to-peer content and knowledge management. In a content network, digital objects are free to move around and be replicated while they still remain accessible. With CONESYS, such content networks can be set up to improve availability and performance of Internet, Intranet, or Extranet services within or across administrative domains. CONESYS offers a highly adaptive functionality to integrate legacy systems into a cross-server content- and knowledge-management infrastructure, and also to plug-in new software modules and connectors into its framework. Thus CONESYS is useful on the one hand for companies with several branch offices that need to connect their information pools; on the other hand, it can also exchange data between several applications residing on one host or one LAN.

An innovative technology allows CONESYS to decouple any digital object from the physical nodes and addressing schemes that carry them (e.g. URLs). This is called the Distributed Digital Objects (DDO) system, based on a kind of IP address combined with an arbitrary unique identifier for digital items.

A CONESYS content network basically knows two kinds of nodes: content providers and content collectors. Content providers have some type of content they make available to the rest of the network. Content collectors are looking for a piece of content which they harvest from content providers. Potentially, any content provider can also act as a content collector, thus allowing for a wide range of network topologies, especially peer-to-peer computing. The network is self-configuring: initial parameters defined in XML description files are being distributed between content collectors and providers similar to the DNS system. New content nodes will be registered automatically to the network. Communication between servers participating in the content network is achieved by interoperable or native connectors provided by CONESYS (like SOAP, XML-RPC, Java RMI, Z39.50, OAI etc.).


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