s_files_securely_erased_when_deleted

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Subject: Re: Security - How to overwrite empty file space on drive?
From: russb@starpower.net
Date: Mon, 10 Jul 2000 02:08:35 -0400 (EDT)

On Sat, 8 Jul 2000, Joe Briggs wrote:
> Windows has a large number of utilities designed to securely
> delete/overwrite files, and also to overwrite empty file space on drive
> with 1's and 0's.
> This is a very important security issue - does Linux have such
> capability?

You can set the `s' attribute on files using the chattr command; see the
man page. When a file with the `s' attribute set is deleted, its blocks are
zeroed and written back to the disk.

Mit freundlichen Gr

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