[Fwd: [Samba] Re: [K12OSN] Re: [Lrlug-discuss]emergency....file/directory recovery]

[Barry Smoke]

I sent to samba list, with the wrong e-mail account, so it never made
it...

Any help with this is appreciated.

Barry Smoke
District Network Administrator
Bryant Public Schools

-----Forwarded Message-----


> From: Steve Langasek <vorlon at dodds.net>
> To: k12osn at redhat.com
> Cc: lrlug-discuss at lrlug.org, samba at lists.samba.org
> Subject: [Samba] Re: [K12OSN] Re: [Lrlug-discuss]emergency....file/directory  recovery
> Date: 03 Jun 2002 17:03:27 -0500
> 
> On Mon, Jun 03, 2002 at 04:55:44PM -0500, Barry Smoke wrote:
> > We have had another instance of this.....
> > since I am forwarding to other lists, "this" involves a lost file, due
> > to accidental deletion.
> 
> > in this case, we had a backup, but from the backup time, till deletion
> > time, a lot of data had been lost.
> 
> > So, we have not enough disk space to do hourly backups, 
> > novell allowed recovery of a lost file like this, 
> > so:
> 
> > is there a filesystem that we need to switch to, that is still linux
> > compatible that has file recovery like this?.....journaled...?
> 
> > Is there an application level program, that keeps stuff that has been
> > deleted?....besides backup, and backup often!?
> 
> > This is mostly a samba issue, for windows users....
> > maybe there should be a samba plug-in, or a purge type structure built
> > in to samba-core.
> 
> > This appears to be a real problem for us.
> 
> > I think this will plague other districts/organizations/businesses in the
> > decision to move to linux, where using samba is possible, but at what
> > cost to file integrity...(maybe integrity is not the right word...)
> 
> As I'm sure the people on the Samba list (whom you've cc:ed) will be happy
> to tell you, there is a "vfs trashcan" implementation available for Samba
> 2.2 and above.  I believe it's part of the main Samba source in the Samba
> 3.0 CVS and will soon be built by default there; I'm not exactly sure what 
> you have to do to get this for Samba 2.2.x, and will defer to Samba list
> denizens.
> 
> Steve Langasek
> postmodern programmer
> 
> 
> > On Mon, 2002-04-01 at 17:27, Bryan Voss wrote:
> > > On Mon, 2002-04-01 at 17:01, Barry Smoke wrote:
> > > > We were doing a re-install of our imagecast software on our samba
> > > > server, and the install deleted the images folder with 3 years worth of
> > > > images in it.  Can we get these back?
> > > 
> > > The only info I have is for ext2 filesystems. Not sure how applicable it
> > > is for other filesystems, so YMMV.
> > > 
> > > 1) Take the system offline ***IMMEDIATELY***. Preferably by just
> > > shutting it off without even doing a shutdown. The longer it runs, the
> > > more likely your lost data has been overwritten. Even doing a proper
> > > shutdown can overwrite some of the data.
> > > 
> > > 2) Remove the drive/drives and hook them up to another system.
> > > 
> > > 3) Mount the filesystem(s) read-only.
> > > 
> > > 4) Download and compile The Coroner's Toolkit, which contains a couple
> > > of utilities you will need: unrm and lazarus. You can get TCT at:
> > > http://www.fish.com/tct/ . You may also want to get TCTUTILs from
> > > http://www.cerias.purdue.edu/homes/carrier/forensics/ to get a nicer
> > > interface for TCT.
> > > 
> > > 5) Read http://www.fish.com/tct/help-recovering-file for a walkthrough.
> > > 
> > > I did this a few years ago and it works, but it will probably take you
> > > many many hours to do a recovery and then it will probably be only
> > > partial. Some files will probably already be partially overwritten, so
> > > you can expect some corrupted images and other problems. As Nathan said,
> > > backups are the only good recovery path, but it's obviously a little
> > > late for that now.
> > > 
> > > Also note the things you find that that can be partially recovered. An
> > > eye opener from a security standpoint. You'll probably find files dating
> > > back to the time that filesystem was put into use.
> > > 
> > > 
> > > -- 
> > > \\//
> > > Bryan Voss
> > >   bvoss at vosswerx.com
> > >     PGP Key: http://www.vosswerx.com/bvoss/pgpkey.txt
> > > 
> > > _______________________________________________
> > > Lrlug-discuss mailing list
> > > Lrlug-discuss at lrlug.org
> > > http://lrlug.org/cgi-bin/mailman/listinfo/lrlug-discuss
> > 
> > 
> > 
> > 
> > 
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