Domain resolution internally


Hoping someone can help me out, I was wondering if anyone could tell me how I can create an alias for a domain or domain NetBIOS name.

I used to work for a company whos domain name was   abc.local   NetBIOS abc  but you could also used simply the word domain to join pc's to the domain or resolve anything that asked for your domain name as well. So a user could type   abc\username or domain\username can anyone tell me how this was achieved ?

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1. Open the "Active Directory Domains and Trusts" MMC

2. in the left pane, right-click "Active Directory Domains and Trusts" and then click "Properties".

3. Enter the UPN suffixes you wish to use in the "Alternate UPN Suffixes" tab and click "Add".

4. Click "OK"

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