forms authentication across multiple web servers

From: Roel (roel_at_pandora.be)
Date: 11/24/05 

Date: Thu, 24 Nov 2005 15:18:20 +0100

Hi,

I want to provide a single sign on for 2 web applications hosted in
different environments.
I set the machinekey to the same value in both web.config files (also i set
them to the same value in the machine.config files). The <authentication
mode="Forms" > section is exactly the same in both applications:

 <authentication mode="Forms" >
   <forms name=".EuphAc" loginUrl="Main/loginForm.aspx" protection="All"
timeout="60" />
 </authentication>

The only time this works is if I do it on the same physical machine: 2 web
applications sharing the same machinekey in web.config section and
<authentication mode="Forms" > section.

If I try the same moving application 2 to another server (including the
web.config file which stays the same), or to localhost, I can login on one
system but it does not login on the other system.

(Strange thing was it sometimes seemed(!) that it worked but after 1 second
it redirected me back to the login page.)

I hope I'm somewhat clear.....

What am I doing wrong ?

Any help much appreciated!

Roel

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