PluralSight WCF Library

PluralSight has a pretty robust collection of WCF related courses.  I decided it would be useful to index the concepts covered in the courses I watched (as part of putting together to 70-487 study guide).

Proxy Windows Authentication with a WCF Relay Service

Motivation

The problem I'm going to address here is pretty specific, and the solution I came up with isn't terribly intuitive, but it works.  I ran into a situation where we were trying to integrate web services with a vendor product.  This is a .NET app running on IIS, and we wanted to authenticate using Active Directory by passing in a username and password to a "UserLogin" soap action (this action returns a security token that is used to make other calls).  While initially we thought this worked, it turned out that it wasn't behaving the way we thought it should.  Any request was getting a security token, even if the username and password were garbage.

Yeah... not what we were going for...