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Date: Wed, 23 Sep 2015 19:14:40 -0700
From: Linda Walsh <cygwin AT tlinx DOT org>
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To: cygwin AT cygwin DOT com
Subject: Re: ssh fails after joining domain
References: <5602B21D DOT 5090808 AT nasa DOT gov>
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Hoot Thompson wrote:
> I'm working on a group of Windows Server 2012 R2 systems. Prior to
> joining the systems to our domain controller, I install the openssh
> components after which I can ssh into the system using the Administrator
> account and password. However, as soon as I join a server to our domain
> controller, ssh no longer works for the exact same Administrator
> account. Are local accounts (such as the aforementioned Administrator
> account) blocked somehow after joining the domain? Is there someway I
> can make the local account work again?
----	
Where does cygwin come in?  Is it a server, or are you trying to login
using cygwin's ssh?

Assuming the latter is the case, as soon as you join a system to the 
domain, the default domain, I believe becomes <DOMAINAME> (not the previous
local hostname).  So you might try:
1) logging  in as 'DOMAIN\Administrator' (if you have that password),
or 
2) logging in as '<workstationname>\Administrator'

Note the single quotes around the login name *should* be
used if you are logging in from a cygwin shell (like bash).


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