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References: <20190306010254 DOT GA4210 AT zebra> <20190306121154 DOT GN3785 AT calimero DOT vinschen DOT de> <20190306124816 DOT GR3785 AT calimero DOT vinschen DOT de> <20190306141716 DOT GS3785 AT calimero DOT vinschen DOT de> <20190306143424 DOT GU3785 AT calimero DOT vinschen DOT de> <CANV9t=SHLCT_xN_T35qTgJmoEBu98gGPaKjHMt559MZ+AwyToQ AT mail DOT gmail DOT com> <20190306153404 DOT GX3785 AT calimero DOT vinschen DOT de>
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From: Bill Stewart <bstewart AT iname DOT com>
Date: Wed, 6 Mar 2019 09:45:12 -0700
Message-ID: <CANV9t=QiOH4cB47XzKZsReH7RLdaB0CxgY-o3jYgZ46DbV3OdA@mail.gmail.com>
Subject: Re: sshd problem on WS2008R2 64bit
To: cygwin AT cygwin DOT com
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On Wed, Mar 6, 2019 at 8:34 AM Corinna Vinschen wrote:

> On Mar  6 08:38, Bill Stewart wrote:
> > On Wed, Mar 6, 2019 at 7:34 AM Corinna Vinschen  wrote:
> > > On Mar  6 15:17, Corinna Vinschen wrote:
> > > > But the old Systems like Windows 7 don't want to play nice.
> > > >
> > > > - On Vista and Windows 7 WOW64, MsV1_0S4ULogon isn't implemented
> > > >   at all, which required to keep the create_token method
> > > >   available
> > > >
> > > > - On Vista and Windows 7 MsV1_0S4ULogon does not work without
> > > >   some user logged in locally, even if it's just the cyg_server
> > > >   service account.
> > >
> > > FTR, Windows 8 / Server 2012 is affected as well,
> > >      Windows 8.1 / Server 2012 R2 is not.
> > > >
> > > > Question is, what is a good solution?  Reverting cyglsa as
> > > > well to allow the old methods to work as before?  This is
> > > > the opposite of what I had hoped to accomplish :(
> >
> > I agree that the new S4U logon method is by far the best solution.
> >
> > It seems to me that this MSV1 S4ULogon behavior on versions older than
NT
> > 6.3 (Vista/Srv2008/Win7/Srv2008R2/Win8/Srv2012) is not expected.
> >
> > What precisely happens when Cygwin uses MSV1 S4ULogon on versions older
> > than 6.3 before a user has logged on?
>
> MsV1S4ULogon returns with STATUS_NOT_SUPPORTED.  Funny status code,
> given it works if some user already logged in by other means...

OK, so here's another potential workaround that doesn't require running the
service as a specific user...

Create a scheduled task to run using the following settings:

General -> Run using user account - > choose a local account
General -> "Run whether user is logged on or not"
Triggers -> Run at system startup
Actions -> Start a program -> Program/script: %SystemRoot%\Cystem32\cmd.exe
Actions -> Start a program -> Add arguments: /c exit

Full password logon is required (seems we can't use "do not store password"
option).

The local account does not have to be a member of Administrators, but it
does require user right "Log on as a batch job" (SeBatchLogonRight).

In my prefunctory testing this seems to fix this problem.

Does this work?

Bill

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