Thanks. Is it possible that shred exit abnormally in any case (for example, some files that it relies on have been shreded)?
-----Original Message-----
From: centos-bounces@xxxxxxxxxx [mailto:centos-bounces@xxxxxxxxxx] On Behalf Of Carl T. Miller
Sent: Tuesday, January 08, 2013 4:36 PM
To: CentOS mailing list
Subject: Re: wiping out data on a disk (no physical acess to the machine)
On 01/08/2013 05:06 PM, Yungwei Chen wrote:
> I need to securely wipe out a disk on a remote machine, but I don't have access to that machine.
> Therefore I cannot use the LiveCD+shred (or dd) combination.
> Besides manually shreding known data files, I am wondering if there is a (free) tool that can be used in my case.
> Thanks.
I hoping that you mean to physical access but you can make
an ssh connection. If so, here are the steps. Note that you'll
need to replace /dev/sdXX with the device of your swap part-
ition and /dev/sdX with the device of the hard drive. It will
run for several hours and leave you with a blank hard drive.
1) connect using ssh and stop all services
2) swapoff /dev/sdXX
3) shred -n5 -z -v /dev/sdX
4) echo 1 > /proc/sys/kernel/sysrq
6) echo o > /proc/sysrq-trigger
c
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