Re: sshd/SYSTEM account/OS version and Cygwin "bitness" limitations

[Corinna Vinschen <corinna-cygwin@cygwin.com>]

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On Mar 28 17:18, Brian Inglis wrote:
> On 2019-03-28 15:36, Bill Stewart wrote:
> > I am trying to understand the limitations when running sshd using the
> > SYSTEM account.
> > Is the following complete and correct?
> > ==========
> > OS_version*  OS_bitness  sshd_bitness  Notes
> > --------------------------------------------------
> > < 6.3        64-bit      32-bit        Note 1
> > < 6.3        64-bit      64-bit        Note 2
> > < 6.3        32-bit      32-bit        Note 2
> >> = 6.3       64-bit      64-bit        No problems
> >> = 6.3       64-bit      32-bit        No problems
> >> = 6.3       32-bit      32-bit        No problems
> > * "< 6.3" = "older than Windows 8.1/Server 2012 R2"; ">= 6.3" = "at least
> > Windows 8.1/Server 2012 R2"
> > Note 1: sshd cannot authenticate local accounts, but it can authenticate
> > domain accounts.
> > Note 2: sshd can't authenticate local accounts after a reboot unless
> > another logon happens first.
> > Unfortunate implication of Note 1: 32-bit version of sshd running as SYSTEM
> > account on OS < 6.3 on non-domain member computer cannot authenticate any
> > accounts.
> 
> cygstart /usr/share/doc/Cygwin/html/ntsec.html

Or https://cygwin.com/cygwin-ug-net/ntsec.html

AFAIK, the only problem left are OS versions 6.0 (Vista/2008)
and 6.1 (7/2008R2), and only 32 bit Cygwin running under WOW64,
*not* 32 bit Cygwin running on a 32 bit Windows.


Corinna

-- 
Corinna Vinschen
Cygwin Maintainer

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