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Date: Wed, 25 Feb 2015 12:26:11 -0500
From: Len Giambrone <Leonard DOT Giambrone AT intersystems DOT com>
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To: <cygwin AT cygwin DOT com>
Subject: Re: gid doesn't display correctly on SAMBA share using AD
References: <54EDF1DB DOT 20708 AT intersystems DOT com> <20150225161849 DOT GG437 AT calimero DOT vinschen DOT de> <54EDFD84 DOT 2030605 AT intersystems DOT com> <20150225172022 DOT GL437 AT calimero DOT vinschen DOT de>
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On 02/25/2015 12:20 PM, Corinna Vinschen wrote:
> On Feb 25 11:51, Len Giambrone wrote:
>> On 02/25/2015 11:18 AM, Corinna Vinschen wrote:
>>> On Feb 25 11:01, Len Giambrone wrote:
>>>> [...]
>>>> The username displays correctly, but the group name does not:
>>>>
>>>> $ ls -la foo
>>>> -rw-rw-r-- 1 build Unix_Group+999 0 Feb 25 10:52 foo
>>>>
>>>> And this is confirmed by running getent:
>>>>
>>>> $ getent passwd build
>>>> build:*:1065765:1049089:U-ISCINTERNAL\build,S-1-5-21-112145844-1872675854-1690816760-17189:/home/build:/bin/bash
>>>>
>>>> $ getent passwd group
>>>>
>>>> I've read
>>>> https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-mapping-nsswitch-gecos
>>>> 'til I'm blue in the face, and I think this should work.
>>>> What am I missing?  How can I debug?
>>> If your admin changed your user account to have a gidNumber 999 only,
>>> then that won't help,  Consider:  Cygwin tries to find a group with
>>> gidNumber set to 999.  How is it supposed to evaluate the right
>>> gidNumber value from some arbitrary user account?
>>>
>>> What Cygwin needs to get the right connection between a Windows group
>>> and a gidNumber value is that the *group* entry in AD itself has the
>>> gidNumber set to the right value.
>>>
>>> I don't know if that's really the problem in your case, but that seems
>>> the most likely.
>>>
>>> Please report back.  I'm excited that I'm not the only one interested
>>> in getting this connection between unix and windows ids working :)
>> It worked.  :)  Now I just have to persuade my admin to populate uidNumber
>> and gidNumber for all our current and new users...
> I'm glad to read that.  Thanks for your feedback!

If I can't get my admin to cooperate, then I have to resort to using 
mkpasswd/mkgroup -U.  But this gives output like this:

$ ls -la foo
-rw-rw-r-- 1 Unix_User+build Unix_Group+releng 0 Feb 25 10:52 foo

Is that expected? (The Unix_User+/Unix_Group+ prefix).


>
> Corinna
>

-- 
-Len

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