rsync - May 2006 - Post-Win2k3 Upgrade rsync+ssh Permissions Problem

Hi all.  OK, so I have a mostly Solaris infrastructure with a group of
Windows 2000 server boxes.  I installed Cygwin rsync/ssh on them and have
been using it to keep Web images up to date by pushing them from a central
server thus:

/usr/local/bin/rsync -e ssh -vrtz --delete
--rsync-path=c:/cygwin/bin/rsync.exe /webnfs/webfiles/images/
winserver:d:/webfiles/images

This sync runs as the UNIX user "weblord", uid 3260.

This has been working fine.  However, now we upgraded the OS to Windows
2003 Server.  I installed the newest rsync (2.6.6) on the new system.

After the upgrade, new files getting synced over were unreadable by the Web
server.

Here's what the permissions look like:

-rwxr-----+ 1 Administrators  mkpasswd    864 Jun  9  1999 yes.gif
-rwxr-----+ 1 544             401         864 Jun  9  1999 yes.gif

I installed SSH with privsep=no and had it add the ssh account, and added
the "weblord" account locally and set its uid to 500 so it'd be
Administrator.

cygwin/etc/passwd:
SYSTEM:*:18:544:,S-1-5-18::
Administrators:*:544:544:,S-1-5-32-544::
Administrator:unused_by_nt/2000/xp:500:513:U-ROBOTRON\Administrator,S-1-5-21-3136447401-2129490065-3906172409-500:/home/Administrator:/bin/bash
Guest:unused_by_nt/2000/xp:501:513:U-ROBOTRON\Guest,S-1-5-21-3136447401-2129490065-3906172409-501:/home/Guest:/bin/bash
SUPPORT_388945a0:unused_by_nt/2000/xp:1001:513:CN=Microsoft
Corporation,L=Redmond,S=Washington,C=US,U-ROBOTRON\SUPPORT_388945a0,S-1-5-21-3136447401-2129490065-3906172409-1001:/home/SUPPORT_388945a0:/bin/bash
weblord:unused_by_nt/2000/xp:500:513:weblord,U-ROBOTRON\weblord,S-1-5-21-3136447401-2129490065-3906172409-1004:/home/weblord:/bin/bash
sshd_server:unused_by_nt/2000/xp:1009:513:sshd server
account,U-ROBOTRON\sshd_server,S-1-5-21-3136447401-2129490065-3906172409-1009:/var/empty:/bin/false

When I look at the Windows permissions of the new files they differ in that
the old files had an owner list of
Administrators
SYSTEM
Domain Users
Users
Everyone

But the new files have
Adminstrator
Domain Users
Everyone

So I blasted in a chmod -R ugo+r and it fixed my problem as of a point in
time, but I need to figure out why when rsyncing the files over they're
getting different ownership/perms than they were...

Any help welcome!

Thanks,
Ernest Mueller

On Tue, 2006-05-09 at 13:02 -0500, Ernest.Mueller@ni.com
wrote:
> After the upgrade, new files getting synced over were unreadable by the Web
> server.
> 
> Here's what the permissions look like:
> 
> -rwxr-----+ 1 Administrators  mkpasswd    864 Jun  9  1999 yes.gif
> -rwxr-----+ 1 544             401         864 Jun  9  1999 yes.gif
How Cygwin translates the Unix permissions set by the receiving rsync
into NTFS ACLs is beyond me, but this article attempts to describe it:

http://cygwin.com/cygwin-ug-net/ntsec.html

Anyway, if telling Cygwin to grant everyone read permission seems to be
enough to solve the problem, pass --chmod=ugo+r to rsync to have it
chmod files as they are transferred.  You need at least rsync 2.6.7 on
the sender for this to work.

Matt