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	<title>My Side Notes &#187; Linux</title>
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	<link>http://www.mysidenotes.com</link>
	<description>my notes on technical support issues and not only...</description>
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		<title>forensics grep regular expressions (credit cards, IP, e-mail addresses, IBAN)</title>
		<link>http://www.mysidenotes.com/2010/04/10/grep-credit-cards-regular-expression/</link>
		<comments>http://www.mysidenotes.com/2010/04/10/grep-credit-cards-regular-expression/#comments</comments>
		<pubDate>Sat, 10 Apr 2010 19:39:12 +0000</pubDate>
		<dc:creator>as</dc:creator>
				<category><![CDATA[Blogroll]]></category>
		<category><![CDATA[Computer Security]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Operating Systems]]></category>

		<guid isPermaLink="false">http://www.mysidenotes.com/?p=217</guid>
		<description><![CDATA[The following regular expressions were tested on Gentoo x64

Search for credit card numbers

grep -E &#8216;(^&#124;[[:space:]])[456][[:digit:]]{3}((-&#124;[[:space:]])?[[:digit:]]{4}){3}([[:space:]]&#124;$)&#8217; &#60;filename&#62;

Search for IP addresses

# grep -E &#8216;(^&#124;[[:space:]])[[:digit:]]{1,3}(\.[[:digit:]]{1,3}){3}([[:space:]]&#124;$)&#8217; &#60;filename&#62;

Search for e-mail addresses

# grep -E &#8216;(^&#124;[[:space:]])[[:alnum:]]{1,}@[[:alnum:]]{2,}\.[[:alpha:]]{2,6}([[:space:]]&#124;$)&#8217; &#60;filename&#62;

Search for IBAN

grep -E &#8216;(^&#124;[[:space:]])[A-Z]{2}[[:digit:]]{2}((-&#124;[[:space:]])[[:alnum:]]{4}){3}&#8217; &#60;filename&#62;
if anybody can give me something less ugly please post it here
]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>hash functions on md RAID-6: part three</title>
		<link>http://www.mysidenotes.com/2010/04/01/hash-functions-on-md-raid-6-part-three/</link>
		<comments>http://www.mysidenotes.com/2010/04/01/hash-functions-on-md-raid-6-part-three/#comments</comments>
		<pubDate>Thu, 01 Apr 2010 19:17:41 +0000</pubDate>
		<dc:creator>as</dc:creator>
				<category><![CDATA[Blogroll]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Mystery]]></category>
		<category><![CDATA[Operating Systems]]></category>

		<guid isPermaLink="false">http://www.mysidenotes.com/?p=209</guid>
		<description><![CDATA[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 [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>hash functions on md RAID-6: part two</title>
		<link>http://www.mysidenotes.com/2010/03/27/hash-functions-on-md-raid-6-part-two/</link>
		<comments>http://www.mysidenotes.com/2010/03/27/hash-functions-on-md-raid-6-part-two/#comments</comments>
		<pubDate>Sat, 27 Mar 2010 20:47:22 +0000</pubDate>
		<dc:creator>as</dc:creator>
				<category><![CDATA[Blogroll]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Mystery]]></category>
		<category><![CDATA[Operating Systems]]></category>

		<guid isPermaLink="false">http://www.mysidenotes.com/?p=195</guid>
		<description><![CDATA[A new kernel was installed and every package on the system was recompiled&#8230;
So, here is another attempt. All the files are scp&#8217;ed to the second computer onto the RAID-6. And again, there is inconsistency. Tho hashes were calculated OK, all the other FAILED.
$ for i in md5sum sha1sum sha256sum; do $i -c $i.sum ; done
Partition_1.dd: [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>hash functions on md RAID-6: part one</title>
		<link>http://www.mysidenotes.com/2010/03/26/hash-functions-on-md-raid-6/</link>
		<comments>http://www.mysidenotes.com/2010/03/26/hash-functions-on-md-raid-6/#comments</comments>
		<pubDate>Fri, 26 Mar 2010 14:34:59 +0000</pubDate>
		<dc:creator>as</dc:creator>
				<category><![CDATA[Blogroll]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Mystery]]></category>
		<category><![CDATA[Operating Systems]]></category>

		<guid isPermaLink="false">http://www.mysidenotes.com/?p=164</guid>
		<description><![CDATA[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 OK on this computer.
# for i in md5sum sha1sum sha256sum; do $i -c $i.sum ; done
Partition_1.dd: OK
Partition_2.dd: OK
Partition_3.dd: [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Gentoo Mozilla Thunderbird Error: Failed to send command&#8230;</title>
		<link>http://www.mysidenotes.com/2009/08/12/gentoo-mozilla-thunderbird-error-failed-to-send-command/</link>
		<comments>http://www.mysidenotes.com/2009/08/12/gentoo-mozilla-thunderbird-error-failed-to-send-command/#comments</comments>
		<pubDate>Wed, 12 Aug 2009 09:01:10 +0000</pubDate>
		<dc:creator>renumbus</dc:creator>
				<category><![CDATA[Blogroll]]></category>
		<category><![CDATA[Linux]]></category>

		<guid isPermaLink="false">http://www.mysidenotes.com/?p=46</guid>
		<description><![CDATA[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.
]]></description>
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		</item>
		<item>
		<title>Is GlusterFS any good?..</title>
		<link>http://www.mysidenotes.com/2009/07/22/glusterfs-is-it-good/</link>
		<comments>http://www.mysidenotes.com/2009/07/22/glusterfs-is-it-good/#comments</comments>
		<pubDate>Wed, 22 Jul 2009 15:11:46 +0000</pubDate>
		<dc:creator>as</dc:creator>
				<category><![CDATA[Distributed File Systems]]></category>
		<category><![CDATA[Linux]]></category>

		<guid isPermaLink="false">http://www.mysidenotes.com/?p=35</guid>
		<description><![CDATA[GlusterFS description sounds very promising: easy configurable, fault tolerant distributed file system. It promises petabytes of storage on a single name space on a commodity hardware.
It implements mirroring and stripe modes which makes it possible to store big files over a set of smaller storage servers.
The question is how easy the system can be extended [...]]]></description>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Gnome MP3 audio profile</title>
		<link>http://www.mysidenotes.com/2008/06/16/gnome-mp3-audio-profile/</link>
		<comments>http://www.mysidenotes.com/2008/06/16/gnome-mp3-audio-profile/#comments</comments>
		<pubDate>Mon, 16 Jun 2008 15:32:30 +0000</pubDate>
		<dc:creator>renumbus</dc:creator>
				<category><![CDATA[Blogroll]]></category>
		<category><![CDATA[Linux]]></category>

		<guid isPermaLink="false">http://www.mysidenotes.com/?p=17</guid>
		<description><![CDATA[To rip to mp3 format I use the following settings in
gnome-audio-profiles-properties
audio/x-raw-int,rate=44100,channels=2 ! lame name=enc mode=0 quality=0 vbr=4 vbr-min-bitrate=192 vbr-quality=2 ! xingmux ! id3v2mux
Hope it helps.
]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>No /etc/inittab on Ubuntu 6.10 (Edgy Eft) and later</title>
		<link>http://www.mysidenotes.com/2008/04/20/no-etcinittab-on-ubuntu-610-edgy-eft-and-later/</link>
		<comments>http://www.mysidenotes.com/2008/04/20/no-etcinittab-on-ubuntu-610-edgy-eft-and-later/#comments</comments>
		<pubDate>Sun, 20 Apr 2008 19:59:10 +0000</pubDate>
		<dc:creator>renumbus</dc:creator>
				<category><![CDATA[Blogroll]]></category>
		<category><![CDATA[Linux]]></category>

		<guid isPermaLink="false">http://www.mysidenotes.com/?p=16</guid>
		<description><![CDATA[For those who like me can not find /etc/inittab file.
Ubuntu does not use System V init process any more to start and stop of the services during startup and shutdown processes. It uses upstart an event-based replacement.
http://upstart.ubuntu.com
inittab settings have been ported to /etc/event.d directory.
]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>VLAN configuration on Fedora Core / Red Hat / CentOS</title>
		<link>http://www.mysidenotes.com/2008/01/30/vlan-configuration-on-fedora-core-red-hat-centos/</link>
		<comments>http://www.mysidenotes.com/2008/01/30/vlan-configuration-on-fedora-core-red-hat-centos/#comments</comments>
		<pubDate>Wed, 30 Jan 2008 11:54:19 +0000</pubDate>
		<dc:creator>renumbus</dc:creator>
				<category><![CDATA[Blogroll]]></category>
		<category><![CDATA[Linux]]></category>

		<guid isPermaLink="false">http://www.mysidenotes.com/?p=14</guid>
		<description><![CDATA[The original article was found on http://www.tummy.com/journals/entries/jafo_20061130_063931
The configuration of VLANs under FC/RHEL/CentOS is something that I always end up looking in the &#8220;ifup&#8221; script and experimenting around with. This is made worse by there being two different conventions that can be used for the interface naming.  Here&#8217;s how I set up VLANs.  First [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Speed up Firefox on Ubuntu</title>
		<link>http://www.mysidenotes.com/2007/10/20/speed-up-firefox-on-ubuntu/</link>
		<comments>http://www.mysidenotes.com/2007/10/20/speed-up-firefox-on-ubuntu/#comments</comments>
		<pubDate>Sat, 20 Oct 2007 08:43:31 +0000</pubDate>
		<dc:creator>renumbus</dc:creator>
				<category><![CDATA[Blogroll]]></category>
		<category><![CDATA[Linux]]></category>

		<guid isPermaLink="false">http://www.mysidenotes.com/?p=13</guid>
		<description><![CDATA[After Ubuntu upgrade I noticed that Firefox become too slow.
It seems that IPv6 had been enabled again.
If I type #ifconfig it shows ipv6 address on eth0 interface.
1. Disable IPv6 module from loading:
add the following line to /etc/modprobe.d/blacklist
blacklist ipv6
2. Disable IPv6 DNS lookup in Firefox:
in Firefox type about:config in the address bar;
change network.dns.disableIPv6 value to true
3. [...]]]></description>
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		<slash:comments>0</slash:comments>
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