[Samba] re[3]: [Samba]NT ACLs and backup.
Greg Freemyer
freemyer-ml at norcrossgroup.com
Wed Jan 30 09:34:55 GMT 2002
Buchan,
Thanks for the info.
At his point I think I will give XFS a shot. It sounds like it might be a more =
mature solution than the ACLs for ext2/ext3 approach.
I still have not got a solution to the issue of backing up external SMB shares =
complete with their ACL metadata.
I went to Amanda's site, and they use Samba to backup WIndows machines. And =
from what I understand smbclient with the tar option does handle the NT ACLs.
If anyone has a solution to this issue, I would appreciate knowing about it. =
Even if it is a commercial product (that runs on Linux).
Greg
>> XFS has xfsdump and xfsrestore, which apparently can be used with tools=20
>> like amanda, which does a full backup of the filesystem including ACLs.
>> Btw, Mandrake 8.1 and later ship XFS ACLs out thew box, with=20
>> samba-2.2.1a with ACL support. Might be a bit less work than recompiling=20
>> both the kernel and samba on Rehdat. Newer versions of samba (2.2.2, and=20
>> soon 2.2.3) for Mandrake 8.1 (with almost-out-the-box winbind support)=20
>> are avaiable at http://ranger.dnsalias.com/mandrake/samba .
>> Buchan
>> > Message: 4
>> > Date: Tue, 29 Jan 2002 14:21:02 -0500
>> > From: Greg Freemyer <freemyer-ml at NorcrossGroup.com>
>> > Subject: re[2]: [Samba]NT ACLs and backup.
>> > To: David Brodbeck <DavidB at mail.interclean.com>,
>> > <samba at lists.samba.org>
>> > Organization: The NorcrossGroup
>> >=20
>> > David,
>> >=20
>> > I'm at the conceptual stage. I have a dedicated Redhat 7.2 box setup
>> for =3D
>> > testing, but I can change the config/filesystems as required.
>> >=20
>> > I want to build a dedicated "SMB storage and backup" server for our
>> office. =3D
>> > Sort of a NAS device with tape capability.
>> >=20
>> > My goal is to have this box do 3 things:
>> >=20
>> > 1) Serve SMB shares with full NT/2000 ACL support.
>> > 2) Be able to backup/restore the above on a file by file basis and have
>> the ACL =3D
>> > metadata maintained.
>> > 3) Use smbclient with the tar option to backup other SMB servers, and
>> again be =3D
>> > able to maintain the ACL metadata.
>> >=20
>> > For 2) above, I need to understand where the ACL metadata is stored, and
>> which =3D
>> > backup technology will allow it to be restored correctly.
>> >=20
>> > I gather from you comment below, that some Linux filesystems support
>> Linux =3D
>> > ACLs, and with those Samba uses this space to hold the NT ACLs.
>> >=20
>> > Could you tell me which Linux Filesystems do this, and which backup
>> tools =3D
>> > correctly handle the Linux ACL metadata. (I always use standard
>> permissions =3D
>> > under UNIX/Linux, so I have never had to do worry about them.)
>> >=20
>> > For 3) above, I tried the smbclient from Samba V2.2.1, but when I did
>> the =3D
>> > restore, it did not restore the ACL metadata. I'm hoping that I either
>> did =3D
>> > something wrong, or that there is a different backup/restore tool that
>> supports =3D
>> > this feature.
>> >=20
>> > Thanks for your help,
>> >=20
>> > Greg Freemyer
>> > Internet Engineer
>> > Deployment and Integration Specialist
>> > The Norcross Group
>> > www.NorcrossGroup.com
>> >=20
>> >=20
>> --=20
>> |----------------Registered Linux User #182071-----------------|
>> Buchan Milne Mechanical Engineer, Network Manager
>> Cellphone * Work +27 82 472 2231 * +27 21 808 2497 ext 202
>> Stellenbosch Automotive Engineering http://www.cae.co.za
Greg Freemyer
Internet Engineer
Deployment and Integration Specialist
The Norcross Group
www.NorcrossGroup.com
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