How to wipe free disk space in Linux?

Posted by Alex B on Super User See other posts from Super User or by Alex B
Published on 2009-08-06T23:48:03Z Indexed on 2010/06/09 17:42 UTC
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Filed under:

linux

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ubuntu

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security

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storage

When a file is deleted, its contents may still be left in the filesystem, unless explicitly overwritten with something else. "wipe" can securely erase files, but does not seem to allow erasing free disk space not used by any files.

What should I use to achieve this?

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