Penetration Testing mailing list archives
Re: Wiping Solaris Servers
From: vtlists () wyae de
Date: Thu, 13 Sep 2007 10:10:52 +0200
Greetings!
I need to find a method of securly wiping Solaris servers using
the DOD
standard disk sanitization requirements.
If you're speaking about the Gutman rules: they are valid only andexclusively for MFM and RLL type of hard discs only - which are out of production since ~10 years (the last of those were the 120 *M*B discs, IIRC).
Just wipe the discs (in this example: c0t0d0) with dd if=/dev/zero of=/dev/rdsk/c0t0d0 resp. dd if=/dev/zero of=/dev/rdsk/c0t0d0c2The magnetic bit space in current hard discs is small enough and magnetic field weak enough that residuent magnetization nearly is undetectable even after the first overwriting - especially in HD techniques forced to using probabilistic bit determination due to the weak/small bit fields.
If you are paranoid enough, you could repeat overwriting the disc alternating between if=/dev/zero and if=/dev/random until your conscience feels at peace. ;-) Bye Volker ------------------------------------------------------------------------ This list is sponsored by: Cenzic Need to secure your web apps NOW? Cenzic finds more, "real" vulnerabilities fast. Click to try it, buy it or download a solution FREE today! http://www.cenzic.com/downloads ------------------------------------------------------------------------
Current thread:
- Wiping Solaris Servers Holstein, Robert - BLS CTR (Sep 12)
- Re: Wiping Solaris Servers Adrian Sanabria (Sep 12)
- Re[2]: Wiping Solaris Servers Matthew Leeds (Sep 13)
- Re: Re[2]: Wiping Solaris Servers Adrian Sanabria (Sep 13)
- Re: Re[2]: Wiping Solaris Servers Adrian Sanabria (Sep 13)
- Re[2]: Wiping Solaris Servers Matthew Leeds (Sep 13)
- Message not available
- Re: Wiping Solaris Servers Brett Cunningham (Sep 12)
- RE: Wiping Solaris Servers Levenglick, Jeff (Sep 13)
- Re: Wiping Solaris Servers Brett Cunningham (Sep 12)
- Re: Wiping Solaris Servers Adrian Sanabria (Sep 12)
- Re: Wiping Solaris Servers Justin Lintz (Sep 12)
- Re: Wiping Solaris Servers vtlists (Sep 13)
- Re: Wiping Solaris Servers C. Bergström (Sep 13)
- Re: Wiping Solaris Servers Adrian Sanabria (Sep 13)
- Re: Wiping Solaris Servers Mister Coffee (Sep 19)
- <Possible follow-ups>
- Re: Wiping Solaris Servers Bill Stout (Sep 14)
- Re: Wiping Solaris Servers Bill Stout (Sep 17)
- RE: Wiping Solaris Servers Levenglick, Jeff (Sep 17)
- RE: Wiping Solaris Servers MILES John M (LC) (Sep 17)
- RE: Wiping Solaris Servers Levenglick, Jeff (Sep 17)
- RE: Wiping Solaris Servers Roten, Charles D. (Sep 17)
- RE: Wiping Solaris Servers alan (Sep 17)