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	<title>jAN fORMAN &#187; php</title>
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	<description>IT Architect / Developer</description>
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		<title>Content Delivery Network</title>
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		<pubDate>Tue, 23 Mar 2010 14:50:24 +0000</pubDate>
		<dc:creator>Jan Forman</dc:creator>
				<category><![CDATA[uncategorized]]></category>
		<category><![CDATA[cdn]]></category>
		<category><![CDATA[internet]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[php]]></category>

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		<description><![CDATA[Today i was testing simple content delivery network (CDN). it&#8217;s implemented on high-level in application layer and uses reverse proxy (with temporary storage). Network ranges are cached in main database and selected while request is being processed. Schema is very easy and there&#8217;s no exact limitation about number of users and nodes.]]></description>
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