Archive for the ‘Linux’ Category

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

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 [...]

hash functions on md RAID-6: part two

Posted: 27th March 2010 by as in Blogroll, Linux, Mystery, Operating Systems
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A new kernel was installed and every package on the system was recompiled… So, here is another attempt. All the files are scp’ed to the second computer onto the RAID-6. And again, there is inconsistency. Tho hashes were calculated OK, all the other FAILED.

hash functions on md RAID-6: part one

Posted: 26th March 2010 by as in Blogroll, Linux, Mystery, Operating Systems
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I stumbled across a very unusual problem. I have one computer with a number of big files from 1Gb to 10 Gb. The files are dd images of some disk partitions. md5sum, sha1sum and sha256sum hashes are

Gentoo Mozilla Thunderbird Error: Failed to send command…

Posted: 12th August 2009 by renumbus in Blogroll, Linux
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Mozilla Thunderbird 2.0.0.22 on Gentoo amd64 would not start. It gives an error: /usr/lib64/mozilla-thunderbird/mozilla-xremote-client: Error: Failed to send command: 500 command not parseable Re-emerging world did not fix the problem. Solution: Run Thunderbid in safe mode $ thunderbird -safe-mode After that Thunderbird starts OK in normal mode.

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