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Subject:	Re: Non-privileged use can't logon
From:	Max Rockliff <max DOT rockliff AT bigpond DOT com>
In-Reply-To:	<mdq2kl$ske$1@ger.gmane.org>
Date:	Thu, 12 Mar 2015 07:36:25 +0800
Cc:	"cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
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To:	Daniel <daniel AT boland DOT nl>
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Hi Daniel

Thanks for that info. Maybe you're right. I gave to admit it's very weird to start with but I'll give it a go and let you know the outcome.

Regards
Max

> On 12 Mar 2015, at 2:44 am, Daniel <daniel AT boland DOT nl> wrote:
> 
> Hi Max,
> 
> Max Rockliff wrote:
>> Hey Corinna,
>> You're a magician.  It seems to have fixed the problem, or at least provided an effective workaround.  Here's a transcript (kinda)
>> 1.  Downloaded the new cygwin1-20150311.dll.xz  (PS. Kudos for using a yyyymmdd format in the name - I always do, but so many don't
>> 2.  Copied the xz file to my privileged user account home folder and Unxz'ed it.
>> 3.  Used Windows to copy the file cygwin1-20150311.dll to the C:\cygwin\bin folder
>> 4.  Stopped the SSHD service
>> 5.  Renamed the old cygwin1.dll to cygwin1.dll.old
>> 6.  Renamed cygwin1-20150311.dll to cygwin1.dll
>> 7.  Started the SSHD service
>> 8.  Started the terminal
>> 9.  Executed ssh st AT localhost and it logged on successfully no errors.
>>    Max AT Max-PC /bin
>>    $ ssh st AT localhost
>>    st AT localhost's password:
>>    Last login: Wed Mar 11 20:32:00 2015 from ::1
>>    st AT Max-PC ~
>>    $
>> 10.  And, as we like to say in Australia - Sweet!
> 
> I noticed that you are initially logged on as a user, named "Max" on a host, named "Max-PC".
> 
> I teach kids Linux using Cygwin and many of them, being gamers, name their computers after themselves, so they can be recognized on a network.
> 
> Having seen this over and over on their laptops, I can now say with 100% certainty that this causes the "/" and "/etc" folders to be installed with group-writable permissions.
> 
> Normally I wouldn't bother, but I make them compile Sendmail as part of a series of lessons. Sendmail doesn't like group-writable folders and refuses to send mail.
> 
> This problem occurs on Win7, Win8, and Win8.1 with the following username/hostname combinations: "Jony AT Jony", "Kjell AT Kjell-PC". The way we solve this is:
> 
> chgrp Users / /etc
> chmod g-w / /etc
> 
> Chmod alone doesn't work. We first have to change the group owner of the folders for chmod to be effective.
> 
> Maybe this phenomenon is unrelated to your sshd problem, but when I saw your user/host combination I felt the need to share this with you and the group.
> 
> Cheers,
> Daniel
> 
> 
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