Rejecting users without a realm

[Mike Diggins]

I couldn't find an answer to this question in the Archives. I have a
FreeRadius Server (2.1.3) and would like it to reject *any* user that
attempts login with a realm (user at realm.com for example). I thought I
could do something like this in the user file:

DEFAULT Realm == "NULL", Auth-Type := Reject

But it doesn't work. What's the best way to do this?

-Mike
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