[python-win32] Backup up Windows ACLs
Randy Syring
rsyring at inteli-com.com
Sat Mar 19 02:40:17 CET 2011
On 03/18/2011 08:21 PM, Ben Timby wrote:
> I would suggest looking at Samba. This would help you solve two problems.
>
> 1. Transporting files to the Linux server.
> 2. The ACL issue, you can use extended ACL support, which, when
> integrated with a Windows domain, can map UID/GID to objects in the
> domain. Winbind allows this by mapping Windows objects to UID/GID on
> the Linux machine through the magic of nsswitch.
It might help w/ the ACL issue. It looks like posix ACLs lose some
fidelity, but with ZFS and NFS v4 ACLs, there is a much greater
precision. However, this would defeat some of what I am looking for b/c
I want to transfer files w/ rsync. Just doing a copy to network share
might feasibly keep the ACLs, but, I think, would send all files over
the network.
> Another possiblity is to look for an archive format that supports the
> meta data you want. For example on Linux tar contains all the modes
> and other file meta data needed to restore the files. If there is not
> an existing similar archive format you can use on Windows, then you
> can "extend" one by appending a .catalog file that contains the
> pickled file meta data. Then a simple python module can create the
> .catalog file and then create the archive using the regular tool
> appending the .catalog to it. Restoring would be equally simple by
> extracting the files and then restoring the meta data (and deleting
> the .catalog file).
A possibility, but I want to only send deltas over the network. So I
won't be packaging/zipping files.
I guess, I could keep a data store of flat files of some kind with ACL
information. Each backup operation would go through directories,
re-create the flat file with ACL info, then backup the actual files in
that directory, backup the file with ACL info, then repeat.
--------------------------------------
Randy Syring
Intelicom
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