Last update:
Apr 1, 2000
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A new architecture for Web Services at CERN
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Alberto Di Meglio,
Francois Fluckiger,
Per Hagen,
Monica Marinucci,
Alberto Pace
CERN
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:  | Short Paper:  |
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