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onebuck 11-07-2012 03:48 PM

Secure Deletion of Data in Linux
 
Hi,

Secure Deletion of Data in Linux

&

Secure Deletion of Data in Linux – part 2

Two good articles to insure understanding for secure deletion of data.

Other useful links in Links for Helpful Linux articles & books

jefro 11-07-2012 05:15 PM

I guess this might also be a reason to start with some encryption or use advanced tools like intel's Vpro or other onboard encryption.

H_TeXMeX_H 11-08-2012 02:05 AM

They are pretty good. I prefer 'wipe'.

With journaled filesystems I recommend cleaning all free space once in a while. So make a large file full of zeroes or random data so that it occupies all free space, and then delete it immediately. Something like:

Code:

dd if=/dev/zero bs=4M of=file; rm -f file
As for multiple passes, it is for the very paranoid. It has never been proven that you can recover any meaningful data even after a pass of zeroes.


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