Go to Home Page
Scientific Program
Docs by topics
Social events
Conference location
 • Grid WShop & Tutorial
 • Grid Program
 • Visiting Padova
 • INFN Padova
 • University of Padova
 • CHEP: '94 '95 '97 '98

Last update: Apr 1, 2000

to first abs  to previous absby abs number to next abs  to last abs


to first abs on this KT  to previous abs on this KTon same keytopic to next abs on this KT  to last abs on this KT


A new architecture for Web Services at CERN

Alberto Di Meglio, Francois Fluckiger, Per Hagen, Monica Marinucci, Alberto Pace

Speaker: Alberto Pace

  A new architecture based on a pool of load-balanced web servers has been deployed to allow the evolution of the CERN Web Services. The new architecture introduces the concept of "logical URL address" which is translated to the physical URL through a database lookup which gives the necessary independence from the hardware layout to move web sites across servers and to avoid broken links or unnecessary redirections. Complete backward compatibility is kept with the existing www url addresses and all "locally managed servers" that are outside the control of the central services can also be integrated in the new web namespace for CERN. The new architecture allows differentiation of the various servers in the pool to offer specific or specialized services (high-availability servers for static html only, CGI servers, Gateways to AFS or Novell) if necessary.
  This paper gives a technical description of the infrastructure in place and then will review the services offered to CERN users. The solutions retained to offer support for automated web site registration, electronic forms, database web connectors, scripting, CGI interfaces, SSL, server load balancing, authentication and access control for Web authors and Web developers will be explained.

Presentation:  PowerPoint Short Paper:  Adobe Acrobat pdf 

  | Top | Home | Bulletins | Committees | Scientific Program | Docs by topics | Social Event | Conference Location | Secretariat |