Re: how to sweep hard disk of confidential data
On Sun, Jul 18, 2004 at 01:02:17PM -0400, H. S. wrote:
>
> I am in a situation where a computer is to be given away and prior to
> that it's hard disk needs to *thoroughly* cleaned (data consists of
> financial information, reports, class exams, competition exams, etc).
Try http://dban.sourceforge.net/
Frank
>
> One method I have found on google is:
> $>dd if=/dev/zero of=/dev/hda
> to clean the first disk. Now this only writes data once. I am not sure
> about this method's thoroughness since I have read that multiple writes
> are necessary to really overwrite the original data.
>
> The second method that I have read is to delete everything from the disk
> and then write a large file (how to get his? random data?) repeatedly
> and fill the disk. Then remove these files with 'wipe'.
>
> Any suggestions? Or any alternate methods? Then there is also the option
> of using a Windows programs to do this. But I am familiar with those.
>
> thanks
> ->HS
>
>
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