Delete files securely on Linux – Journaled file systems - Comment Page: 1

Few days ago I write about shred, which work fine for old systems, like EXT2, but not so nice with journaled file systems. Modern file systems need something more robust, like dd and srm (a secure replacement for rm). Unlike the standard rm, srm overwrites and rename the files before unlinking them. This makes it very hard to recovery of the data. Create test file: echo "secure content" > /tmp/secure.txt dd and srm command usage Fill free space with zeroes (Use very carefully): dd if=/dev/zero of=/tmp/secure.txt Write buffered data from the memory out to disk sync Delete file with srm: # Basic example srm /tmp/secure.txt # US Dod compliant 7-pass...