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From:	Maayan Apelboim <Maayan DOT Apelboim AT clarizen DOT com>
To:	"cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject:	RE: can't access remote shares when using ssh with rsa key - passwd -R / set(e)uid / LogonUser is not working as expected
Date:	Wed, 13 Mar 2019 08:31:59 +0000
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References:	<20190306122816 DOT GP3785 AT calimero DOT vinschen DOT de>
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Hi,

I appreciate your detailed response, however, stored passwords doesn't work properly.
I've read the article and ran passwd -R as described - no errors generated and I was able to find the relevant registry entry after running the command, but still can't access network shares (access denied).
When I login with password network shares are available.

Is there something else I need to do except 'passwd -R' for getting a proper token?

Thanks

-----Original Message-----
From: Corinna Vinschen [mailto:corinna-cygwin AT cygwin DOT com] 
Sent: Wednesday, March 6, 2019 2:28 PM
To: cygwin AT cygwin DOT com
Subject: Re: can't access remote shares when using ssh with rsa key - passwd -R / set(e)uid / LogonUser is not working as expected

On Mar  6 10:09, Maayan Apelboim wrote:
> Well, it doesn't work OK unfortunately, but I'm not sure if I missed something in the process, or is it just not working properly.
> I'm a bit worried to upgrade to 3.0.2 at the moment cause it's a major version and will probably have new bugs that I wouldn't want to find in production.
> 
> Assuming we will eventually upgrade to latest version - My sshd 
> service is running with domain user cyg_server and we login with domains users via ssh - is it still OK to switch the sshd service's user to local system?
> Will we still be able to login with domain users via ssh?

Yes, that's the idea.  The new method using the official S4U logon technique runs under the SYSTEM account.  No need to have a special cyg_server account with potentially dangerous privileges anymore.

> Will it help with my network shares problem?

No.  Just like the old techniques using an LSA authentication module or creating a user token from scratch, S4U login does not create tokens with valid network credentials.  For some weird reason only Microsoft knows about, you still need a password login for that.

The other method, logging in by stored password, as described in
https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-nopasswd3 still works, though.


Corinna

--
Corinna Vinschen
Cygwin Maintainer

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