* Data Shredding on a Journal Filesystem
@ 2002-09-24 21:12 berthiaume_wayne
2002-09-25 7:30 ` Oleg Drokin
0 siblings, 1 reply; 6+ messages in thread
From: berthiaume_wayne @ 2002-09-24 21:12 UTC (permalink / raw)
To: reiserfs-list
[-- Attachment #1: Type: text/plain, Size: 443 bytes --]
Hello fellow ReiserFS fans. I'm in search of a data shredder for use
on reiserfs and am wondering if anyone knows of one. It would need to
effectively remove any trace both in the journal and on the disk itself any
and all data pertaining to a file. I'm not sure, but I thought at one time
Hans was talking about something this himself. I have looked at shred() but
it does not work with journalling filesystems.
Most appreciatively,
Wayne
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Data Shredding on a Journal Filesystem
2002-09-24 21:12 Data Shredding on a Journal Filesystem berthiaume_wayne
@ 2002-09-25 7:30 ` Oleg Drokin
2002-09-26 6:13 ` Tom Vier
0 siblings, 1 reply; 6+ messages in thread
From: Oleg Drokin @ 2002-09-25 7:30 UTC (permalink / raw)
To: berthiaume_wayne; +Cc: reiserfs-list
Hello!
On Tue, Sep 24, 2002 at 05:12:03PM -0400, berthiaume_wayne@emc.com wrote:
> Hello fellow ReiserFS fans. I'm in search of a data shredder for use
> on reiserfs and am wondering if anyone knows of one. It would need to
> effectively remove any trace both in the journal and on the disk itself any
> and all data pertaining to a file. I'm not sure, but I thought at one time
> Hans was talking about something this himself. I have looked at shred() but
> it does not work with journalling filesystems.
shred should work just fine with reiserfs in case you did not
enable data journaling mode and you have tails disabled.
The only thing that may be left on disk is filename and
blocks in which file itself was stored.
Bye,
Oleg
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Data Shredding on a Journal Filesystem
2002-09-25 7:30 ` Oleg Drokin
@ 2002-09-26 6:13 ` Tom Vier
2002-09-26 6:20 ` Oleg Drokin
0 siblings, 1 reply; 6+ messages in thread
From: Tom Vier @ 2002-09-26 6:13 UTC (permalink / raw)
To: reiserfs-list
On Wed, Sep 25, 2002 at 11:30:01AM +0400, Oleg Drokin wrote:
> shred should work just fine with reiserfs in case you did not
> enable data journaling mode and you have tails disabled.
> The only thing that may be left on disk is filename and
> blocks in which file itself was stored.
(shameless plug):
http://wipe.sf.net/
wipe also won't wipe the journal or wipe all traces of the filename, since
it works from userland, same as shred. if you really want to clean it (as
much as is possible - nothing can really 100% erase it), wipe the whole
block dev.
of course, putting sensitive files on a loopback encrypted fs is better.
then you don't have to worry about plaintext laying around, and you don't
need shred or wipe.
--
Tom Vier <tmv@comcast.net>
DSA Key ID 0xE6CB97DA
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Data Shredding on a Journal Filesystem
2002-09-26 6:13 ` Tom Vier
@ 2002-09-26 6:20 ` Oleg Drokin
2002-09-26 6:36 ` Tom Vier
0 siblings, 1 reply; 6+ messages in thread
From: Oleg Drokin @ 2002-09-26 6:20 UTC (permalink / raw)
To: Tom Vier; +Cc: reiserfs-list
Hello!
On Thu, Sep 26, 2002 at 02:13:32AM -0400, Tom Vier wrote:
> of course, putting sensitive files on a loopback encrypted fs is better.
> then you don't have to worry about plaintext laying around, and you don't
> need shred or wipe.
You also need to be careful so that this sensitive data won't get into swap.
Bye,
Oleg
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Data Shredding on a Journal Filesystem
2002-09-26 6:20 ` Oleg Drokin
@ 2002-09-26 6:36 ` Tom Vier
0 siblings, 0 replies; 6+ messages in thread
From: Tom Vier @ 2002-09-26 6:36 UTC (permalink / raw)
To: reiserfs-list
On Thu, Sep 26, 2002 at 10:20:43AM +0400, Oleg Drokin wrote:
> > of course, putting sensitive files on a loopback encrypted fs is better.
> > then you don't have to worry about plaintext laying around, and you don't
> > need shred or wipe.
>
> You also need to be careful so that this sensitive data won't get into swap.
also, .bash_history can reviel filenames.
--
Tom Vier <tmv@comcast.net>
DSA Key ID 0xE6CB97DA
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: Data Shredding on a Journal Filesystem
@ 2002-09-26 17:20 berthiaume_wayne
0 siblings, 0 replies; 6+ messages in thread
From: berthiaume_wayne @ 2002-09-26 17:20 UTC (permalink / raw)
To: green; +Cc: reiserfs-list
Hi Oleg.
I'm using the standard journaling from 2.4.19 - metadata for
recovery from power failures. We are also using tails at this time. I have
been investigating the use of -o notails as a performance improvement;
however, I need to weigh that against disk space usage as well.
-----Original Message-----
From: Oleg Drokin [mailto:green@namesys.com]
Sent: Wednesday, September 25, 2002 3:30 AM
To: berthiaume_wayne@emc.com
Cc: reiserfs-list@namesys.com
Subject: Re: [reiserfs-list] Data Shredding on a Journal Filesystem
Hello!
On Tue, Sep 24, 2002 at 05:12:03PM -0400, berthiaume_wayne@emc.com wrote:
> Hello fellow ReiserFS fans. I'm in search of a data shredder for use
> on reiserfs and am wondering if anyone knows of one. It would need to
> effectively remove any trace both in the journal and on the disk itself
any
> and all data pertaining to a file. I'm not sure, but I thought at one time
> Hans was talking about something this himself. I have looked at shred()
but
> it does not work with journalling filesystems.
shred should work just fine with reiserfs in case you did not
enable data journaling mode and you have tails disabled.
The only thing that may be left on disk is filename and
blocks in which file itself was stored.
Bye,
Oleg
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2002-09-26 17:20 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2002-09-24 21:12 Data Shredding on a Journal Filesystem berthiaume_wayne
2002-09-25 7:30 ` Oleg Drokin
2002-09-26 6:13 ` Tom Vier
2002-09-26 6:20 ` Oleg Drokin
2002-09-26 6:36 ` Tom Vier
-- strict thread matches above, loose matches on Subject: below --
2002-09-26 17:20 berthiaume_wayne
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.