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Chapter 22 - Computer Forensics -- The Art of Deleting and Retrieving Data
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dban-1.0.6_i386.iso
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readme.txt
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2005-07-24
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Contents
--------
1.0 About Darik's Boot and Nuke
2.0 Installing DBAN
2.1 Creating the DBAN floppy disk on Microsoft Windows
2.2 Creating the DBAN CDR/CDRW on Microsoft Windows
2.3 Creating the DBAN floppy disk on Linux
2.4 Creating the DBAN CDR/CDRW on Linux.
3.0 Configuring DBAN
3.1 Automatic Wiping
3.2 SYSLINUX.CFG
4.1 Free Updates
4.2 Contact Information
5.0 Advanced Features
5.1 Logging
5.2 PRNG Seeding
6.0 Legal
1.0 About Darik's Boot and Nuke
--------------------------------
Darik's Boot and Nuke ("DBAN") is a self-contained boot floppy that securely
wipes the hard disks of most computers. DBAN will automatically and completely
delete the contents of any hard disk that it can detect, which makes it an
appropriate utility for bulk or emergency data destruction.
2.0 Installing DBAN
--------------------
2.1 Creating the DBAN floppy disk on Microsoft Windows
-------------------------------------------------------
Double-click the 'dban-1.0.6_i386.exe' program to create a DBAN floppy disk.
You must use an account with full hardware access to create the DBAN floppy
disk. This means that you must be a member of the administrators group or have
similar privileges on your computer. Virus scanners and domain policies can
prevent you from creating the DBAN floppy disk.
2.2 Creating the DBAN CDR/CD-RW on Microsoft Windows
-----------------------------------------------------
If you do not have a floppy drive, or if you wish to use a CD drive or DVD
drive instead, then get the "CDR/CDRW version" from the DBAN home page.
The "CDR/CDRW version" of DBAN is an ISO file. Microsoft Windows may hide the
".iso" part of the file name when you download it to your computer.
Double-click the ISO file to burn DBAN to blank CD-R or CD-RW media.
If nothing happens when you double-click the ISO file, or if the "Open With"
dialog that asks you to "choose a program" starts, then you do not have burning
software installed that understands the ISO format.
Visit the DBAN home page and check the FAQ for links to burning software.
2.3 Creating the DBAN floppy disk on Linux
-------------------------------------------
# unzip dban-*.exe
# dd if=dban-*.img of=/dev/floppy bs=1024
The EXE file is a zip file with an SFX header. InfoZip, which is bundled with
most Linux distributions, can unpack it. Ignore the offset warnings.
If /dev/floppy does not exist on your computer, then try /dev/fd0 or
/dev/floppy/0 instead. This command also works on BSD systems.
2.4 Creating the DBAN CDR/CD-RW on Linux
----------------------------------------
# cdrecord -v dban-*.iso
3.0 Configuring DBAN
---------------------
3.1 Automatic Wiping
---------------------
Enter "autonuke" at the boot prompt to automatically wipe all devices in the
computer without confirmation.
3.2 SYSLINUX.CFG
-----------------
The "A:\SYSLINUX.CFG" file is the DBAN configuration file. You may change the
default behavior of DBAN by editing this file after you create the DBAN floppy
disk.
4.1 Free Updates
-----------------
If you wish to be automatically notified of DBAN updates, then go to
http://freshmeat.net/subscribe/31200/ and subscribe to new releases.
4.2 Contact Information
------------------------
E-Mail: Darik Horn <dajhorn-dban@vanadac.com>
Web: http://dban.sourceforge.net/
All e-mail messages must have "DBAN" in the subject line. Messages without
"DBAN" in the subject line will be blocked by my spam filter.
Please attach the DBAN log file, if possible, when sending a bug report.
5.0 Advanced Features
----------------------
5.1 PRNG Seeding
-----------------
Seeding the PRNG is optional. It is not required for DBAN to work properly.
DBAN can load prng seeds from a floppy disk to improve the quality of
operations that use random data. DBAN will check A:\DBANSEED for seed files
when it starts. Seed files must be exactly 512 bytes in size, but they can
have any name.
(The acronym "prng" stands for "pseudo random number generator".)
If you are using a Linux system, then run this command to make seed files:
# dd if=/dev/urandom of=MySeedFile bs=512 count=1
If /dev/urandom does not exist on your computer, then try /dev/random instead.
If this command produces files that are smaller than 512 bytes, then your
system entropy pool has been exhausted. Your system will replenish its entropy
pool over time.
If you are using a Microsoft Windows system, then you will need 3rd party
software to make seed files. The Cygwin posix environment for Microsoft
Windows can run the command given above. Visit http://www.cygwin.com/ to
obtain the Cygwin product.
5.2 Logging
------------
Darik's Boot and Nuke will attempt to write a log file to A:\DBANLOG after it
wipes the hard disks in a computer. Log files are in the tarball format. The
average log file will be 5 kilobytes in size.
If you are using a unix system, then use this command to unpack the tarball:
# tar -xzvf dban0000.tgz
If you are using a Microsoft Windows system, then use WinZip or WinRAR to
unpack the TGZ file. Notepad will not display the text files in the tarball
properly, so use Wordpad instead.
6.0 Legal
----------
This software is provided without any warranty; without even the implied
warranty of merchantability or fitness for a particular purpose. In no event
shall the software authors or contributors be liable for any damages arising
from the use of this software. This software is provided "as is".
All DBAN components are subject to copyright. Please see the 'licenses' folder
within the DBAN distribution package for additional information.
EOF