WCF via Windows Service - Authinticating Clients

Posted by Sean on Stack Overflow See other posts from Stack Overflow or by Sean
Published on 2010-04-10T16:04:55Z Indexed on 2010/04/10 16:13 UTC
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I am a WCF / Security Newb. I have created a WCF service which is hosted via a windows service. The WCF service grabs data from a 3rd party data source that is secured via windows authentication. I need to either:

Pass the client's priveleges through the windows service, through the WCF service and into the 3rd party data source, or...
Limit who can call the windows service / wcf service to members of a particular AD group.

Any suggestions on how I can do either of these tasks?

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