Window Authentication

  • How can I displable the Window authentication login and use only sa created login to the SQL Server?

    What is the effect if I disble Window Authentication login?

     

  • Well, since SQL Server runs in either Windows Authentication Mode or Mixed Mode (SQL and NT), I guess your best bet is to:

    -Remove all NT based server logins

    -Remove 'Builtin\Administrators' Group

    I haven't tested it, but this should get you started on locking out all NT users and domain admins.

  • The advice given is the only way to get to SQL Server logins only. If there is a Windows user account/group granted login rights to SQL Server, it'll be able to connect.

    Be careful on the removal of BUILTIN\Administrators. There are a few steps you'll have to perform before going down this road. A couple of articles on this site detail what to do.

    K. Brian Kelley
    @kbriankelley

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