Archive for April, 2010

forensics grep regular expressions
(credit cards, IP, e-mail addresses, IBAN)

Posted: 10th April 2010 by as in Blogroll, Computer Security, Linux, Operating Systems
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The following regular expressions were tested on Gentoo x64

Search for credit card numbers

grep -E ‘(^|[[:space:]])[456][[:digit:]]{3}((-|[[:space:]])?[[:digit:]]{4}){3}([[:space:]]|$)’ <filename>

Search for IP

Exchange Server messages disappearence

Posted: 1st April 2010 by as in Blogroll, Mystery, Operating Systems, Windows
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Another story from the mystery category. A Microsoft Small Business Server has been moved from one premises to another twice in the last two weeks. The first time the server was moved and the users confirmed that the server is up and running and all the services working fine. The main service of the server [...]

hash functions on md RAID-6: part three

Posted: 1st April 2010 by as in Blogroll, Linux, Mystery, Operating Systems
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In the original configuration the RAID-6 over the 6 disks was build using two different SATA controllers. Four disks were connected to RocketRAID and the other two connected to the integrated Intel SATA.
Now, the motherboard has changed to  a new one with 6 SATA connections via the integrated controller. However, it caused tat the CPU [...]