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single sign on was not installed

Posted By:      Posted Date: October 11, 2010    Points: 0   Category :SharePoint

Hello, I installed Sharepoint 3.0. As far as I know Microsoft Single Sign On should have been installed automatically by installing ss. But the service is not there (at services.msc).  Can you help me out?

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googled lot and found some stuff such as adding machine key to web.config and specifying domain names in cookies. 

But it is not at all working for me. when I specify the domain name for cookies i am unable to sign out. 

I am using FormsAuthentication in asp.net. 

Following is the code I have in my web.config.

<authentication mode="Forms">
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<machineKey validationKey="21F090935F6E49C2C797F69BBAAD8402ABD2EE0B667A8B44EA7DD4374267A75D"
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I am using Microsoft Single Sign On service in context to Sharepoint server 2007.

I want the external applications to use the single sign on service for authentication within a secure Enterprise portal environment.

Here the external application should be authenticated via single sign-on. But while configuring SSO in Share point central admin, it offers two methods of "Manage settings for enterprise application definitions" which is Individual and Group .

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2. I need rest of the users who does not belong to the above said user group should use individual external credentials mapped to Individual user .

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Here is my scenario...


I have a web app located at www.MyMainSite.com and I have several domains, such as www.MyFirstSite.com, www.MySecondSite.com, etc. all pointing to the same directory in IIS.  I use Host Headers to acheive this by setting the 'Host Header Values' under properties for the main site (under the Web site identification section).  Based on the host header value I perform different functions in my pages.


Because of the way I have it set up, all the domains share the same files, web.config, etc.  I have set the 'machinekey' in my web.config and have forms authemtication.  However, when I go to MyMainSite.com and log in and then the user clicks a link and gets directed to MyFirstSite.com the user is shown as logged out.  I need the user to be logged in and I need to be able to access the logged in user profile to display certain information.  I thought by setting the 'machinekey', i could acheive this, but it does not seem to work. 


Can someone please explain to me how to go about having a single log on for my users?


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I turned on Single Sign on Service on  MOSS 2007 Server.  In my environment, I have medium server farm with 2 front-end web servers, App server, index server and cluster SQL backend.

When I tried to configure single sign on, I got this error

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Under the server name, I entered SQL Cluster name instead of the SQL Server name because my SQL server is set up as cluster.

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