Securing web site with redundancy ?

[Bénoni MARTIN <Benoni.MARTIN () libertis ga>]

Hi all !

I was wondering if there was a way to set up 2 "redundant" web servers (identical web sites), i.e. when one crashes, 
the other one takes the connection over. The same thing which is already available for firewalls (high disponibility), 
but with web servers.

We would have 2 Windozes in a DMZ with IIS as the web server, and a pix firewall between the dmz and Internet. Is there 
any tool allowing this out there ? I tried to google quite a while, but without any chance...

Some one has an idea ?

Cheers list !

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