What Active Directory field do I use to uniquely identify a user?

Question

I have an Asp.net MVC project authenticating through AD. I would like to store audit information in tables for the current logged in user. What should I be storing in the da

Answer 1

samAccountName is the user name the user uses to log in with. You can get a little more 'complete' by prepending the domain too, but there's no reason not to use the obvious username field.