Difference between revisions of "Linux Secure Delete"

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(Wipe Drive Erase)
Line 30: Line 30:
 
done
 
done
 
</pre>
 
</pre>
 
  
  
 
==Notes==
 
==Notes==
 
*https://wiki.archlinux.org/index.php/Securely_wipe_disk#Checking_progress_of_dd_while_running
 
*https://wiki.archlinux.org/index.php/Securely_wipe_disk#Checking_progress_of_dd_while_running
 +
 +
=SCRIPTS=
 +
tail *
 +
 +
<pre>
 +
==> dd.drivetest <==
 +
        fi
 +
 +
echo "Reading Entire Drive"
 +
 +
while [ 1 ];
 +
do
 +
  dd if=$1 of=/dev/zero bs=64M
 +
  sleep 5;
 +
done
 +
 +
 +
==> dd.erasedrive <==
 +
        fi
 +
 +
echo "Writing Entire Drive"
 +
 +
while [ 1 ];
 +
do
 +
  dd if=/dev/zero of=$1 bs=64M
 +
  sleep 5;
 +
done
 +
 +
 +
==> dd.progress <==
 +
#! /bin/bash
 +
while [ 1 ];
 +
do
 +
  kill -USR1 $(pidof dd)
 +
  sleep 5;
 +
done
 +
</pre>

Revision as of 03:39, 16 October 2014

sudo apt-get install secure-delete

This has four tools:

srm - securely delete an existing file
smem - securely delete traces of a file from ram
sfill - wipe all the space marked as empty on your hard drive
sswap - wipe all the data from you swap space.

Wipe Drive Erase

  • dd command
dd if=/dev/zero of=/dev/sdX iflag=nocache oflag=direct bs=4096
  • dd command repeat
while [ 1 ];
do 
  dd if=/dev/zero of=/dev/sdX iflag=nocache oflag=direct bs=4096
  sleep 5;
done
  • Progress of DD
while [ 1 ];
do 
  kill -USR1 $(pidof dd)
  sleep 5;
done


Notes

SCRIPTS

tail *
==> dd.drivetest <==
        fi

echo "Reading Entire Drive"

while [ 1 ];
do
  dd if=$1 of=/dev/zero bs=64M
  sleep 5;
done


==> dd.erasedrive <==
        fi

echo "Writing Entire Drive"

while [ 1 ];
do
  dd if=/dev/zero of=$1 bs=64M
  sleep 5;
done


==> dd.progress <==
#! /bin/bash
while [ 1 ];
do 
  kill -USR1 $(pidof dd)
  sleep 5;
done