Re: file scrubbing

[Ron Johnson <ron.l.johnson@cox.net>]

On Fri, 2002-08-09 at 00:14, Geoff Crompton wrote:
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>   Does anyone know of any file scrubbing tools? Something that will zero out 
> the contents of a file, or overwrite it with random data? Previously I have 
> done things find the file size, and use 
>   $dd if=/dev/zero of=targfile bs=1 count=filesize
>   But I am not certain that this overwrites the actual inode locations on 
> disk, and it is clumsy to work out the file size before hand.
>   Something like the following would be great:
> 
>   $ scrub -r -R -d dir
> 
>   Where the -r would recurse, the -R would randomize it (instead of filling 
> with zeros) and the -d would sync and then rm the file.

What kind of filesystem will it be on?  As has been discussed many
times here, journaling filesystems bollix up scrubbers.

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| Ron Johnson, Jr.        Home: ron.l.johnson@cox.net           |
| Jefferson, LA  USA                                            |
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