GNUser wrote:
shred is not secure in EXT3 file system, or any system using journaling for
that matter.
When erasing "normal" files (not a whole partition, /dev/sda3 for example),
it is true that a copy of the files can be present in the journal. However,
and as far as I understand:
if the file is large enough (a few MB is large), one could only find, in that
way, small fragments, not the whole file;
if the file is old enough (in terms of the number of blocks written on the
filesystem since the creation of the file), then nothing can be found in the
journal.
Any reference about nautilus-wipe doing a better job at that (and, if real,
about the penalty in terms of the time required to wipe)?
With 'shred', one can also overwrite two times (instead of three times, the
default) the file plus a third pass to write zeros:
$ shred -n 2 -z file [file2 ...]
