Serban Simu wrote:
I did notice a number of postings around this subject, but couldn't see
a resolution (Corinna answered a Feb '06 posting by Dave Perdue that the
problem should be fixed in 1.5.20, which is why I'm reposting for 1.5.21).
I am exclusively using password auth (and am aware of the pubkey auth
limitations).
The basic setup is a Win 2003 R2 standard server, member of a domain
(machine name is SM2WIN2003 and domain is OFFICE). Installed 1.5.21 and
ran ssh-host-config. All goes well and I have sshd service running as
local user sshd_server.
Then ran mkpasswd and mkgroup:
mkpasswd -l > /etc/passwd
mkpasswd -d >> /etc/passwd (I only have one domain so this is same
as mkpasswd -d OFFICE)
mkgroup -l > /etc/group
mkgroup -d >> /etc/group
If I ssh as a local user "local1", windows whoami returns
sm2win2003\local1
If I ssh as domain user "test1", windows whoami returns
sm2win2003\sshd_server (BAD)
If I strip the /etc/group file to only:
SYSTEM:S-1-5-18:18:
None:S-1-5-21-3712540747-3723856708-2352634044-513:513:
Domain Users:S-1-5-21-4293257363-1756470469-1603820055-513:10513:
Then ssh as domain user "test1", windows whoami returns office\test1
(GOOD)
Now, I tried adding the minimum possible to /etc/group to create the
problem, so if I just add one line:
SYSTEM:S-1-5-18:18:
None:S-1-5-21-3712540747-3723856708-2352634044-513:513:
Domain Users:S-1-5-21-4293257363-1756470469-1603820055-513:10513:
Test Users:S-1-5-21-4293257363-1756470469-1603820055-1123:11123:
Then ssh as domain user "test1", windows whoami returns
sm2win2003\sshd_server (BAD)
My domain user test1 is a member of domain group Test Users.
So my questions would be:
(1) I did find a work around, but what is the explanation of this
problem and what is a good, solid work around?
(2) Is there a way and a plan to straighten this behavior, and maybe
document the usage in Win 2003 domain environments (I'm assuming that
most people would be interested in accessing network resources in Win
2003 domains, which is why this is a problem in the first place)
Also, I believe that I didn't have this problem on older Win 2003
(before R2), but I no longer have a test setup to confirm it.
Attached is the full "whoami /all" output and cygcheck.out.
Interesting results. It would be interesting to see what "whoami /all"
reports for these users locally as well, without the sshd "filter". I
expect the issue at hand here is that one group for each user is the
primary group. My WAG is that "Test Users" is the primary group for
the user "test1". Off the top of my head, it's not clear how adding
the group to the '/etc/group' file changes things though.
--
Larry Hall http://www.rfk.com
RFK Partners, Inc. (508) 893-9779 - RFK Office
216 Dalton Rd. (508) 893-9889 - FAX
Holliston, MA 01746
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
