Re: Linux to Windows Rsync Permission Problems

[mwoehlke <mwoehlke at tibco dot com>]

Jimmy McMillan wrote:
> I've had this problem for some time now, and just getting around to 
> doing something about it.  I'll keep the description as brief as possible.
>
> I'm rsyncing from a linux server to a Windows XP machine's firewire 
> drive via SSH\cygwin\rsync.  The linux server pushs with the following 
> command.
>
> /usr/local/bin/rsync -e ssh --recursive --verbose --delete --force 
> --update /mnt/hd/mail_store/ 
> jackcorn@192.168.66.99:/cygdrive/i/backups/webs_data/
>
> 192.168.66.99 == My Workstation. (Windows XP + Cygwin)
> /cygdrive/i == 250GB firewire drive on my workstation. (NTFS)
> jackcorn == a Local user on my workstation.  (Didn't want to bother with 
> a domain account)
>
> it appears that any file owned by root once on it's NTFS filesystem 
> after the backup can be opened successfully.  However any file owned by 
> vpopmail:vchkpw cannot be opened.
> -rw-r--r--   1 root     root   167851 2005-10-04 15:33 byebye.sh
> -rwx--x--x   1 vpopmail vchkpw  55996 2005-06-28 14:44 clearopensmtp*
> (In this case I can open byebye.sh on the firewire drive after the 
> backup, but not the clearopensmtp)
>
> The only way I can access those files are to "Replace permission entries 
> on all child....yatta yatta" under the Advanced Security Settings under 
> windows.  However there are a couple hundred thousand files in there and 
> that can take some time.
>
> I've tried with the -g -o -p options with rsync and I've also tried 
> using CYGWIN=nontsec or CYGWIN=ntsec under the windows Enviro Variables, 
> with no luck.
>
> Is there anyway I can map the vpopmail user to a windows local user?  Or 
> does anyone know what else to do?

Well, first off, you don't have permission to read that file unless you 
are "vpopmail" (notice that only the owner has read permission?). Thus, 
you need to change the permissions to allow you to read it.

Brute force solution #1 (assuming you can chown):
find . -user vpopmail -print0 | xargs -0 chown Administrator

Brute force solution #2 (assuming you can chmod):
chown -R a+r .

Both of those should be done on the backups ONLY - which would mean in 
Cygwin - as changing permissions on the computer using the files is a 
potential security risk (well, it's that on the backups, too, but I 
assume you feel comfortable with whatever safeguards you have against 
your backup drive being hacked into) and might cause programs to 
malfunction.

--
Matthew
And now back to your regularly scheduled e-mail.


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