What's the meaning of logging in as "[email protected]:something"

Posted by Harvey Kwok on Server Fault See other posts from Server Fault or by Harvey Kwok
Published on 2012-09-07T01:33:41Z Indexed on 2012/09/07 3:39 UTC
Read the original article Hit count: 273

Filed under:

active-directory

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windows-server-2008-r2

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domain

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login

My Windows 2008 R2 machine is joined to a domain.

In the logon screen, if I type in "[email protected]:something" as the username, I can still logon properly, what's the meaning of ":something" appended at the end?

I can even see the current user is displayed as "[email protected]:something" in the switch user screen. Is it a feature in Windows? Or is it just a bug? If it is a feature, what's the difference between logging in as "[email protected]" and logging in as "[email protected]:something"?

Note that I tried different combinations like "mydomain\username:something" and "mydomain.com:something\username". None of them work except "[email protected]:something".

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