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On Monday 14 Jan 2013 02:11:32 Adam Carter wrote: |
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> shred and dd available, but not srm etc |
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> |
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> I want to remove the user account info before the device is returned, but |
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> dont want to cripple the device. Filesystem is ext3 with default mount |
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> options, which implies its mounted with the default data=ordered, and |
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> according to the docs "In both the data=ordered (default) and |
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> data=writeback modes, shred works as usual" |
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> |
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> Would these steps be effective? |
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> - set root pw back to installation default |
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> - manually create copies of passwd and shadow (named passwd2 shadow2, NOT |
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> by copying files then deleting extra lines) containing only the default |
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> installation entries |
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> - shred /etc/passwd /etc/shadow |
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> - mv passwd2 and shadow2 to passwd and shadow |
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> - dd if=/dev/zero of=/blah (to blank all spare blocks on fs, dd will bail |
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> out once full. Will it miss info from non-fully allocated blocks?) |
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> - rm /blah |
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Sounds good, but you would also need to shred -z -u /home/user files just in |
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case some private files are still in there? Also, where is mail stored? |
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-- |
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Regards, |
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Mick |
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