Re: 'Shredding' a hard disk
On Thu, 13 Jun 2002 13:37:04 +0200, Philipp Lehman writes:
>I want to sell an old machine that I don't use any more but there's
>still sensitive stuff like personal emails, gpg keys, and passwords on
>the hdd. What's the recommended way to securely 'shred' this data so
>that it cannot be undeleted by the next owner?
Depends.
But, for all practical values, a simple `dd if=dev/urandom bs=1M \
of=/dev/hdX` should be quite sufficient.
>I assume I need to do something like overwriting the whole drive
>serveral times with random data before finally erasing and reformating
>the whole drive. Are there any apps out there that do this or do I have
>to roll my own solution using something like "cat /dev/urandom | dd"?
>Any suggestions?
Use dd.
cheers,
&rw
--
/ Ing. Robert Waldner | Security Engineer | CoreTec IT-Security \
\ <rw@coretec.at> | T +43 1 503 72 73 | F +43 1 503 72 73 x99 /
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