StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
text
Body
copied!<p>Not as far as I know, secure deletion requires the CPU to do a bit of work, especially DoD standard which I believe is 3 passes of inflating 1's and 0's. You can, however, encrypt the harddrive. Given that a user would need phsyical access and a password for the CentOS to recover the data. As long as you routinely monitory access logs for suspicious activity on the server, this should be "secure".</p> <p>While searching found this article: <a href="http://www.builderau.com.au/program/mysql/soa/Six-steps-to-secure-sensitive-data-in-MySQL/0,339028784,339266102,00.htm" rel="nofollow noreferrer">Six Steps to Secure Sensitive Data in MySQL</a> </p> <p>Short of that though, I do not think a DoD standard wipe is viable or even possible without taking the server down. </p> <p><strong>EDIT</strong></p> <p><del>One thing I found is this software: <a href="http://www.datadoctor.biz/data-wiper.html" rel="nofollow noreferrer">data wiper</a>.</del> If there is a linux comparable version of that, that might work "wipes unused disk space". But again this may take a major performance toll on your server, so may be advisable to run at night at a set time and I do not know what the re-precautions (if any) of doing this too often to a harddrive. </p> <p>One other resource is <a href="http://www.linuxquestions.org/questions/linux-security-4/secure-unused-disk-space-wipes-dd-and-shred-627070/" rel="nofollow noreferrer">this forum thread</a>. It talks about wiping unused space etc. From that thread one resource stands out in particular: <a href="http://www.digipedia.pl/man/doc/view/sfill.1" rel="nofollow noreferrer">secure_deletion toolkit - sfill</a>. The man page should be helpful.</p>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload