sslug-teknik team mailing list archive

[Jørgen Heesche <heesche@xxxxxxxxxxx>]

Verner Kjærsgaard wrote:
> Lørdag 21 oktober 2006 18:56 skrev Michael Rasmussen:
> > On Sat, 21 Oct 2006 18:05:05 +0200, Claus M. Christiansen wrote:
> > > Jeg vil lige høre om nogen har prøvet denne, eller ved om den virker til
> > > at wipe en harddisks fri plads? Eventuelt hører jeg også gerne om andre
> > > muligheder for at wipe en harddisks fri plads.
> > På min Debian Sid findes kommandoen wipe, som gør ovenstående, men på fil
> > basis. Prøv eventuelt om du ikke også har den kommando: man wipe.
>
> man shred :-)
shred er tilsyneladende ikke pålidelig, man shred siger:
CAUTION:  Note  that  shred relies on a very important assumption: that
       the filesystem overwrites data in place.  This is the 
traditional  way
       to  do  things,  but many modern filesystem designs do not 
satisfy this
       assumption.  The following are examples of filesystems on  which 
 shred
       is not effective:

       * log-structured or journaled filesystems, such as those 
supplied with

              AIX and Solaris (and JFS, ReiserFS, XFS, Ext3, etc.)

Det skulle være bedre at bruge wipe, se her:
http://archives.neohapsis.com/archives/vuln-dev/2000-q4/0147.html
shred (cf. bugtraq) is on many standard Linux distributions and should be
replaced by wipe for those that need secure deletes.

--
Med venlig hilsen

Jørgen Heesche
mailto:heesche@xxxxxxxxxxx
Registered Linux User #401007