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In-Reply-To: <83773bf8-4ec6-d2ed-b2ba-37e64cc7dcc0@SystematicSw.ab.ca>
Date: Sat, 24 Oct 2020 03:02:17 -0400
Message-ID: <CAEMWCRtTYxhdFdPh9aQqrPU+o-4OoBzc_E6=gVOtYKK-OhkaRQ@mail.gmail.com>
Subject: Re: Fwd: Objects in ACL cygwin win 10
To: cygwin@cygwin.com
From: Jim McNamara via Cygwin <cygwin@cygwin.com>
Reply-To: Jim McNamara <nefariousscheme@gmail.com>
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Sender: "Cygwin" <cygwin-bounces@cygwin.com>

Hi Brian

Yes, I see now what you are saying. Didn't know why it behaves like that.
Do you reccomend:

A. Noacl option  in fstab
B. Reinstall and leave icacls in windows alone so I can deploy in future
with runtime

Thnx,
Roboloki

On Sat, Oct 24, 2020, 12:46 AM Brian Inglis <Brian.Inglis@systematicsw.ab.ca>
wrote:

> On 2020-10-23 21:49, Jim McNamara via Cygwin wrote:
> > On Fri, Oct 23, 2020, 10:06 PM Eliot Moss wrote:
>
> >> I have to admit I am not 100% sure what you are asking, but I am careful
> >> to grant SYSTEM access so
> >> that my backup program can access and save a copy of virtually
> everything
>
> > Thanks for you and Brian helping me.
> > I used icacls cygwin /q /c /t reset
>
> You have to be very careful using icacls and other Windows commands with
> Cygwin
> ACLs as
>
> "ICACLS preserves the canonical ordering of ACE entries:
>         Explicit denials
>         Explicit grants
>         Inherited denials
>         Inherited grants"
>
> and Cygwin's POSIX ACLs may or may not obey this canonical order; Windows
> File
> Explorer often does not consider Cygwin ACLs in what it considers canonical
> order and requires them to be reordered, which breaks the Cygwin
> permissions.
>
> Ah, that "NT AUTHORITY/SYSTEM" SID, normally paired with
> BUILTIN/Administrators,
> as users, groups, or both:
>
> $ ls -dl /proc/cygdrive/c/Users/; echo; getfacl /proc/cygdrive/c/Users/;
> echo;
> icacls C:/Users/
> drwxr-xr-x+ 1 SYSTEM SYSTEM 0 Apr 13  2020 /proc/cygdrive/c/Users/
>
> # file: /proc/cygdrive/c/Users/
> # owner: SYSTEM
> # group: SYSTEM
> user::rwx
> group::r-x
> group:Administrators:rwx        #effective:r-x
> group:Users:r-x
> mask::r-x
> other::r-x
> default:user::rwx
> default:group::---
> default:group:Administrators:rwx        #effective:r-x
> default:group:Users:r-x
> default:mask::r-x
> default:other::r-x
>
> C:/Users/ NT AUTHORITY\SYSTEM:(OI)(CI)(F)
>           BUILTIN\Administrators:(OI)(CI)(F)
>           BUILTIN\Users:(RX)
>           BUILTIN\Users:(OI)(CI)(IO)(GR,GE)
>           Everyone:(RX)
>           Everyone:(OI)(CI)(IO)(GR,GE)
>
> Successfully processed 1 files; Failed processing 0 files
>
> --
> Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
>
> This email may be disturbing to some readers as it contains
> too much technical detail. Reader discretion is advised.
> [Data in binary units and prefixes, physical quantities in SI.]
>
> --
> Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
>
> This email may be disturbing to some readers as it contains
> too much technical detail. Reader discretion is advised.
> [Data in binary units and prefixes, physical quantities in SI.]
> --
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