Re: [tlug] eradicate the evil

[Edward Middleton <edward@example.com>]

Josh Glover wrote:
> On 22/12/05, Michal Hajek <hajek1@example.com> wrote:
>   
>> * Jim (jep200404@example.com) [051221 17:01]:
>>
>>     
>>>    dd if=/dev/zero of=/dev/hdawhatever
>>>
>>> Poof! That old data is GONE.
>>>       
>> hmm, some paranoid people believe that this is not enough, though.
>>     
> /me wonders if Michal means /me when he mentions paranoid people.
>
> How's this:
>
> for i in zero random zero random zero; do
>
>   dd if=/dev/$i of=/dev/hda
>
> done
>   
Unless you have a really good entropy source I would suggest urandom.

The relevant line being.

# man 4 random

       When the entropy pool is empty,  reads from /dev/random will
block until additional environmental  noise is gathered.

Edward