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From: Bill Stewart <bstewart AT iname DOT com>
Date: Fri, 15 Feb 2019 14:48:28 -0700
Message-ID: <CANV9t=R1aTMWPNNs0xQrTHdOnsZ+UMiu53MP-ggzv4kZZTzrdg@mail.gmail.com>
Subject: Re: Windows to Cygwin username mapping: Domain before local account when duplicate name?
To: cygwin AT cygwin DOT com
Content-Type: text/plain; charset="UTF-8"
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On Fri, Feb 15, 2019 at 2:32 PM Corinna Vinschen wrote:

> > The section that starts with "Let's discuss the SID<=>uid/gid mapping
> > first. Here's how it works." states this order:
>
> It doesn't state an order.  It describes the mapping from SID to
> uid/gid, and there's *no* order at all to it, just a description how
> certain SIDs are mapped to certain uid/gid values given numerical
> recipies.

Right, I assumed that it was an order. I see I was misunderstanding this.

> If you login locally to a domain member machine the default domain is
> the logon domain of this machine.  If that's not what you want you have
> to choose the logon domain of your account explicitely, even if it's the
> local machine SAM.  Windows will not try to find the user name locally
> if you didn't chose it explicitely.  You get "The user name or password
> is incorrect. Try again" instead.

If you are talking about logging on at a Windows machine, that's true.
But IIRC this isn't what the APIs do (at least the .NET ones): If you
specify a username without an authority, the APIs search the local
account database first.

Regards,

Bill

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