RE: [PLUG] clean hard drives

["Eugene Smiley" <eugene@esmiley.net>]

Check this result from a Google of "using dd overwrite data":
http://www.linuxsecurity.com/feature_stories/data-hiding-forensics.html

plug-admin@lists.phillylinux.org <> wrote:
> I'm in the process of building some computers from used equipment
> and (possibly) putting these out to customers (they'll know it's
> used so there's no ethical problem here.)
> 
> My problem is I'd like to make sure the old customer's data is
> off of the hard drive to avoid the embarassing CIA/FBI type
> problems (failure to remove classified data.)
> 
> How would you suggest I ensure the data is gone?  I thought of
> installing the drive on Secondary IDE as master and issue the
> command: 
> 
> #  dd if=/dev/urandom of=/dev/hdc
> 
> Somehow, I figure that won't "erase" the data like "shred"
> or a PGP "wipe" command.  What utilities are available in Linux
> for this type of task. 
> 
> TIA
> 
> Eric
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