This is the mail archive of the
mailing list for the Cygwin project.
Re: POSIX permission mapping and NULL SIDs
- From: Bill Zissimopoulos <billziss at navimatics dot com>
- To: "cygwin at cygwin dot com" <cygwin at cygwin dot com>
- Date: Fri, 24 Jun 2016 22:53:00 +0000
- Subject: Re: POSIX permission mapping and NULL SIDs
- Authentication-results: sourceware.org; auth=none
- Authentication-results: spf=none (sender IP is ) smtp dot mailfrom=billziss at navimatics dot com;
- References: <D392BA70 dot 95D4%billziss at navimatics dot com> <20160624195144 dot GB27089 at calimero dot vinschen dot de> <D392F074 dot 962E%billziss at navimatics dot com> <20160624215948 dot GD27089 at calimero dot vinschen dot de> <CACoZoo3xsGPqiEXzAXHVjsG_hrO6Sd-thTPh3RC_0i==rPgCKw at mail dot gmail dot com>
- Spamdiagnosticmetadata: NSPM
- Spamdiagnosticoutput: 1:99
On 6/24/16, 3:06 PM, "firstname.lastname@example.org on behalf of Erik
Soderquist" <email@example.com on behalf of
>On Fri, Jun 24, 2016 at 5:59 PM, Corinna Vinschen wrote:
>>> I am inclined to try S-1-5-7 (Anonymous). But I do not know if that is
>>> bad choice for some reason or other.
>> I thought about Anonymous myself when I wrote my reply to your OP. I
>> refrained from mentioning it because it might have some unexpected side
>> effect we're not aware about.
>I know in at least some versions of IIS, the Anonymous SID is the one
>explicitly used for all not logged in www/ftp/etc clients connecting
>to IIS -- not sure if that would affect this discussion.
It is my understanding that this is the intended use of the Anonymous SID.
I have not thought enough to know whether it would fit properly in this
One caveat is that Cygwin already maps S-1-5-7 to uid 7. So does that mean
that 7==nobody in Cygwinâs case?