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	<title>123 Tweak &#187; Linux</title>
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	<link>http://www.123tweak.com</link>
	<description>Optimize your Website</description>
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		<title>Schedule tasks on Linux using crontab</title>
		<link>http://www.123tweak.com/schedule-tasks-on-linux-using-crontab/</link>
		<comments>http://www.123tweak.com/schedule-tasks-on-linux-using-crontab/#comments</comments>
		<pubDate>Thu, 14 Apr 2011 11:38:34 +0000</pubDate>
		<dc:creator>Tweak</dc:creator>
				<category><![CDATA[Ajax]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Servers]]></category>
		<category><![CDATA[cron]]></category>
		<category><![CDATA[crontab]]></category>
		<category><![CDATA[Schedule]]></category>

		<guid isPermaLink="false">http://www.123tweak.com/?p=865</guid>
		<description><![CDATA[If you&#8217;ve got a website that&#8217;s heavy on your web server, you might want to run some processes like generating thumbnails or enriching data in the background. This way it can not interfere with the user interface. Linux has a great program for this called cron. It allows tasks to be automatically run in the [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>How to check an MD5 hash on a file</title>
		<link>http://www.123tweak.com/how-to-check-an-md5-hash-on-a-file/</link>
		<comments>http://www.123tweak.com/how-to-check-an-md5-hash-on-a-file/#comments</comments>
		<pubDate>Wed, 05 May 2010 07:37:20 +0000</pubDate>
		<dc:creator>Tweak</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[centos]]></category>
		<category><![CDATA[hash]]></category>
		<category><![CDATA[md5]]></category>

		<guid isPermaLink="false">http://www.123tweak.com/?p=719</guid>
		<description><![CDATA[MD5 is a one-way hash algorithm as defined by RFC1321 and can be used to help determine the integrity of a file by providing a 128 bit digital signature. This digital signature is like a fingerprint for a file, changing just one single byte in a file will result in a different MD5 hash. MD5 [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Check / List Running Services</title>
		<link>http://www.123tweak.com/check-list-running-services/</link>
		<comments>http://www.123tweak.com/check-list-running-services/#comments</comments>
		<pubDate>Mon, 03 May 2010 17:53:52 +0000</pubDate>
		<dc:creator>Tweak</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[Servers]]></category>
		<category><![CDATA[centos]]></category>
		<category><![CDATA[ntsysv]]></category>
		<category><![CDATA[running services]]></category>

		<guid isPermaLink="false">http://www.123tweak.com/?p=692</guid>
		<description><![CDATA[Q. How do I list all currently running services in CentOS / RHEL / Fedora Linux server ? A. There are various ways and tools to find and list all running services under CentOS / RHEL / Fedora Linux systems. service command &#8211; list running services service --status-all service --status-all &#124; grep ntpd service --status-all [...]]]></description>
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		<slash:comments>1</slash:comments>
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		<item>
		<title>How to Change the Timezone in Linux</title>
		<link>http://www.123tweak.com/how-to-change-the-timezone-in-linux/</link>
		<comments>http://www.123tweak.com/how-to-change-the-timezone-in-linux/#comments</comments>
		<pubDate>Mon, 09 Nov 2009 18:00:23 +0000</pubDate>
		<dc:creator>Tweak</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[Servers]]></category>
		<category><![CDATA[Timezone]]></category>

		<guid isPermaLink="false">http://www.123tweak.com/?p=679</guid>
		<description><![CDATA[Logged in as root, check which timezone your machine is currently using by executing `date`. You&#8217;ll see something like Mon Nov 9 13:49:01 EST 2009, PST in this case is the current timezone. Change to the directory /usr/share/zoneinfo here you will find a list of time zone regions. Choose the most appropriate region, if you [...]]]></description>
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		<slash:comments>2</slash:comments>
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		<item>
		<title>System Tuning Info for Linux Servers</title>
		<link>http://www.123tweak.com/system-tuning-info-for-linux-servers/</link>
		<comments>http://www.123tweak.com/system-tuning-info-for-linux-servers/#comments</comments>
		<pubDate>Thu, 11 Jun 2009 18:27:23 +0000</pubDate>
		<dc:creator>Tweak</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[Servers]]></category>
		<category><![CDATA[optimizing]]></category>
		<category><![CDATA[Speed up]]></category>

		<guid isPermaLink="false">http://www.123tweak.com/?p=301</guid>
		<description><![CDATA[NOTE: Most of the info on this page is about 3 years, and one or two kernel versions out of date. This page is about optimizing and tuning Linux based systems for server oriented tasks. Most of the info presented here I&#8217;ve used myself, and have found it to be beneficial. I&#8217;ve tried to avoid [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Speed up your system by avoiding the swap file</title>
		<link>http://www.123tweak.com/speed-up-your-system-by-avoiding-the-swap-file/</link>
		<comments>http://www.123tweak.com/speed-up-your-system-by-avoiding-the-swap-file/#comments</comments>
		<pubDate>Thu, 11 Jun 2009 18:13:41 +0000</pubDate>
		<dc:creator>Tweak</dc:creator>
				<category><![CDATA[Servers]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Speed up]]></category>
		<category><![CDATA[swap]]></category>

		<guid isPermaLink="false">http://www.123tweak.com/?p=298</guid>
		<description><![CDATA[Most modern operating systems are capable of using a file or partition known as a swap or paging file. Most Linux distributions will also install one for you by default. This file is used to extend the amount of available RAM by writing some of it to your hard drive. There&#8217;s just one problem: hard [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>All about Linux swap space</title>
		<link>http://www.123tweak.com/all-about-linux-swap-space/</link>
		<comments>http://www.123tweak.com/all-about-linux-swap-space/#comments</comments>
		<pubDate>Thu, 11 Jun 2009 18:10:40 +0000</pubDate>
		<dc:creator>Tweak</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[Servers]]></category>
		<category><![CDATA[swap]]></category>

		<guid isPermaLink="false">http://www.123tweak.com/?p=295</guid>
		<description><![CDATA[As well as the swap partition, Linux also supports a swap file that you can create, prepare, and mount in a fashion similar to that of a swap partition. The advantage of swap files is that you don&#8217;t need to find an empty partition or repartition a disk to add additional swap space. To create [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>Useful commands for the Linux command line</title>
		<link>http://www.123tweak.com/useful-commands-for-the-linux-command-line/</link>
		<comments>http://www.123tweak.com/useful-commands-for-the-linux-command-line/#comments</comments>
		<pubDate>Mon, 08 Jun 2009 06:48:47 +0000</pubDate>
		<dc:creator>Tweak</dc:creator>
				<category><![CDATA[Linux]]></category>
		<category><![CDATA[command]]></category>

		<guid isPermaLink="false">http://www.123tweak.com/?p=155</guid>
		<description><![CDATA[This short guide shows some important commands for your daily work on the Linux command line. arch Outputs the processor architecture. $ arch i686 cat Outputs the contents of a file. $ cat lorem.txt Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim [...]]]></description>
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