Security
Edit
Using Windows Authentication
http://forums.lhotka.net/forums/22855/ShowThread.aspx#22855
http://forums.lhotka.net/forums/thread/22529.aspx
http://forums.lhotka.net/forums/thread/22107.aspx
Edit
Implementing Permission-based authorization
The .NET framework supports a role-based authorization model, and CSLA .NET is built on top of that model. However, it is possible to implement a more granular level of permission-based authorization on this model as well.
Here's a
forum thread
with good information.
Here's one of Rocky's
blog posts
on the topic.