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CentOS secure delete/scrub free space?
Can anyone recommend a good tool for securely erasing / scrubbing free hard drive space in CentOS?
The purpose would be simply to securely clean up a dedicated server before I stop renting it. I'd like to ensure any data cannot be recovered by whoever gets the hard drives after I am finished with them.
Thanks in advance for any advice related to this.
If you have out of band access (ilo, drac, ipmi), then use
DBAN. There's no real way to do it from within the OS, other than just making a ton of writes to keep overwriting the blocks.
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Originally Posted by
Yes, This can be achieved by overwriting the blocks with random data using something like dd.
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1. Boot your server into ramdisk
2. User shred in order to securely delete your data: http://en.wikipedia.org/wiki/Shred_(Unix)
You can run a basic check if the files are there with https://github.com/machn1k/Scalpel-2.0
Anyway, that is a simple check. Try and do some more digging.
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