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	<title>Random Musings of an Insane Mind &#187; Varnish</title>
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	<link>http://cd34.com/blog</link>
	<description>This is my blog, there are many others like it but this one is mine.</description>
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		<title>First beta of my new webapp, SnapReplay.com</title>
		<link>http://cd34.com/blog/startups-2/first-beta-of-my-new-webapp-snapreplay-com/</link>
		<comments>http://cd34.com/blog/startups-2/first-beta-of-my-new-webapp-snapreplay-com/#comments</comments>
		<pubDate>Sat, 28 Jan 2012 14:27:51 +0000</pubDate>
		<dc:creator>cd34</dc:creator>
				<category><![CDATA[Startups]]></category>
		<category><![CDATA[node.js]]></category>
		<category><![CDATA[rogerwaters]]></category>
		<category><![CDATA[socket.io]]></category>
		<category><![CDATA[thewall]]></category>
		<category><![CDATA[Varnish]]></category>

		<guid isPermaLink="false">http://cd34.com/blog/?p=1360</guid>
		<description><![CDATA[After a late night working until 2:45am on the finishing touches, my phone alerted me to the fact it was 5:35am and time for the first Live Photostream to take place. The stream? Roger Waters &#8211; The Wall, from the Burswood Dome in Perth, AUSTRALIA. Special thanks to Paul Andrews for taking the pictures and [...]]]></description>
		<wfw:commentRss>http://cd34.com/blog/startups-2/first-beta-of-my-new-webapp-snapreplay-com/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Finally, a formal release for my WordPress + Varnish + ESI plugin</title>
		<link>http://cd34.com/blog/infrastructure/finally-a-formal-release-for-my-wordpress-varnish-esi-plugin/</link>
		<comments>http://cd34.com/blog/infrastructure/finally-a-formal-release-for-my-wordpress-varnish-esi-plugin/#comments</comments>
		<pubDate>Tue, 10 Jan 2012 09:06:40 +0000</pubDate>
		<dc:creator>cd34</dc:creator>
				<category><![CDATA[Web Infrastructure]]></category>
		<category><![CDATA[esi]]></category>
		<category><![CDATA[Varnish]]></category>
		<category><![CDATA[wordpress]]></category>

		<guid isPermaLink="false">http://cd34.com/blog/?p=1329</guid>
		<description><![CDATA[A while back I wrote a plugin to take care of a particular client traffic problem. As the traffic came in very quickly and unexpectedly, I had only minutes to come up with a solution. As I knew Varnish pretty well, my initial reaction was to put the site behind Varnish. But, there&#8217;s a problem [...]]]></description>
		<wfw:commentRss>http://cd34.com/blog/infrastructure/finally-a-formal-release-for-my-wordpress-varnish-esi-plugin/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>W3 Total Cache and Varnish</title>
		<link>http://cd34.com/blog/infrastructure/w3-total-cache-and-varnish/</link>
		<comments>http://cd34.com/blog/infrastructure/w3-total-cache-and-varnish/#comments</comments>
		<pubDate>Thu, 21 Jul 2011 22:27:39 +0000</pubDate>
		<dc:creator>cd34</dc:creator>
				<category><![CDATA[Web Infrastructure]]></category>
		<category><![CDATA[Varnish]]></category>
		<category><![CDATA[w3tc]]></category>

		<guid isPermaLink="false">http://cd34.com/blog/?p=1215</guid>
		<description><![CDATA[Last week I got called into a firestorm to fix a set of machines that were having problems. As Varnish was in the mix, the first thing I noticed was the hit rate was extremely low as Varnish&#8217;s VCL wasn&#8217;t really configured well for WordPress. Since WordPress uses a lot of cookies and Varnish passes [...]]]></description>
		<wfw:commentRss>http://cd34.com/blog/infrastructure/w3-total-cache-and-varnish/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Gracefully Degrading Site with Varnish and High Load</title>
		<link>http://cd34.com/blog/infrastructure/gracefully-degrading-site-with-varnish-and-high-load/</link>
		<comments>http://cd34.com/blog/infrastructure/gracefully-degrading-site-with-varnish-and-high-load/#comments</comments>
		<pubDate>Sun, 17 Jul 2011 02:32:23 +0000</pubDate>
		<dc:creator>cd34</dc:creator>
				<category><![CDATA[Web Infrastructure]]></category>
		<category><![CDATA[Varnish]]></category>

		<guid isPermaLink="false">http://cd34.com/blog/?p=1208</guid>
		<description><![CDATA[If you run Varnish, you might want to gracefully degrade your site when traffic comes unexpectedly. There are other solutions listed on the net which maintain a Three State Throttle, but, it seemed like this could be done easily within Varnish without needing too many external dependencies. The first challenge was to figure out how [...]]]></description>
		<wfw:commentRss>http://cd34.com/blog/infrastructure/gracefully-degrading-site-with-varnish-and-high-load/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Updated WordPress VCL &#8211; still not complete, but, closer</title>
		<link>http://cd34.com/blog/infrastructure/updated-wordpress-vcl-still-not-complete-but-closer/</link>
		<comments>http://cd34.com/blog/infrastructure/updated-wordpress-vcl-still-not-complete-but-closer/#comments</comments>
		<pubDate>Sat, 16 Jul 2011 15:46:32 +0000</pubDate>
		<dc:creator>cd34</dc:creator>
				<category><![CDATA[Web Infrastructure]]></category>
		<category><![CDATA[Varnish]]></category>
		<category><![CDATA[vcl]]></category>
		<category><![CDATA[wordpress]]></category>

		<guid isPermaLink="false">http://cd34.com/blog/?p=1205</guid>
		<description><![CDATA[Worked with a new client this week and needed to get the VCL working for their installation. They were running W3TC, but, this VCL should work for people running WP-Varnish or any plugin that allows Purging. This VCL is for Varnish 2.x. There are still some tweaks, but, this appears to be working quite well. [...]]]></description>
		<wfw:commentRss>http://cd34.com/blog/infrastructure/updated-wordpress-vcl-still-not-complete-but-closer/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>When to Cache, What to Cache, How to Cache</title>
		<link>http://cd34.com/blog/infrastructure/when-to-cache-what-to-cache-how-to-cache/</link>
		<comments>http://cd34.com/blog/infrastructure/when-to-cache-what-to-cache-how-to-cache/#comments</comments>
		<pubDate>Tue, 21 Jun 2011 22:17:15 +0000</pubDate>
		<dc:creator>cd34</dc:creator>
				<category><![CDATA[Web Infrastructure]]></category>
		<category><![CDATA[caching]]></category>
		<category><![CDATA[cdn]]></category>
		<category><![CDATA[esi]]></category>
		<category><![CDATA[Varnish]]></category>

		<guid isPermaLink="false">http://cd34.com/blog/?p=929</guid>
		<description><![CDATA[This post is a version of the slideshow presentation I did at Hack and Tell in Fort Lauderdale, Florida at The Collide Factory on Saturday, April 2, 2011. These are 5 minute talks where each slide auto-advances after fifteen seconds which limits the amount of detail that can be conveyed. A brief introduction What makes [...]]]></description>
		<wfw:commentRss>http://cd34.com/blog/infrastructure/when-to-cache-what-to-cache-how-to-cache/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>WordPress, Varnish and ESI Plugin</title>
		<link>http://cd34.com/blog/scalability/wordpress-varnish-and-esi-plugin/</link>
		<comments>http://cd34.com/blog/scalability/wordpress-varnish-and-esi-plugin/#comments</comments>
		<pubDate>Mon, 06 Jun 2011 02:28:16 +0000</pubDate>
		<dc:creator>cd34</dc:creator>
				<category><![CDATA[Scalability]]></category>
		<category><![CDATA[esi]]></category>
		<category><![CDATA[Varnish]]></category>
		<category><![CDATA[wordpress]]></category>

		<guid isPermaLink="false">http://cd34.com/blog/?p=1177</guid>
		<description><![CDATA[This post is a version of the slideshow presentation I did at Hack and Tell in Fort Lauderdale, Florida at The Whitetable Foundation on Saturday, June 4, 2011. Briefly, I created a Plugin that enabled Fragment Caching with WordPress and Varnish. The problem we ran into with normal page caching methods was related to the [...]]]></description>
		<wfw:commentRss>http://cd34.com/blog/scalability/wordpress-varnish-and-esi-plugin/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>WordPress Varnish ESI Widget is back.  Thank you Varnish.</title>
		<link>http://cd34.com/blog/infrastructure/wordpress-varnish-esi-widget-is-back-thank-you-varnish/</link>
		<comments>http://cd34.com/blog/infrastructure/wordpress-varnish-esi-widget-is-back-thank-you-varnish/#comments</comments>
		<pubDate>Wed, 26 Jan 2011 14:15:37 +0000</pubDate>
		<dc:creator>cd34</dc:creator>
				<category><![CDATA[Web Infrastructure]]></category>
		<category><![CDATA[esi]]></category>
		<category><![CDATA[Varnish]]></category>
		<category><![CDATA[wordpress]]></category>

		<guid isPermaLink="false">http://cd34.com/blog/?p=1117</guid>
		<description><![CDATA[Long ago I wrote the WordPress ESI Widget to help a client&#8217;s site stay online during a barrage of traffic. To solve some of the performance problems on high traffic WordPress sites, you have to use caching, but almost all of the caching addons for WordPress do page level caching rather than fragment caching. After [...]]]></description>
		<wfw:commentRss>http://cd34.com/blog/infrastructure/wordpress-varnish-esi-widget-is-back-thank-you-varnish/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>DDOS attack mitigation</title>
		<link>http://cd34.com/blog/webserver/ddos-attack-mitigation/</link>
		<comments>http://cd34.com/blog/webserver/ddos-attack-mitigation/#comments</comments>
		<pubDate>Mon, 26 Apr 2010 06:02:58 +0000</pubDate>
		<dc:creator>cd34</dc:creator>
				<category><![CDATA[Webserver Software]]></category>
		<category><![CDATA[Apache]]></category>
		<category><![CDATA[ddos]]></category>
		<category><![CDATA[Nginx]]></category>
		<category><![CDATA[Varnish]]></category>

		<guid isPermaLink="false">http://cd34.com/blog/?p=937</guid>
		<description><![CDATA[Today we had a DDOS attack on one of our clients. They were running prefork with mod_php5 with a rather busy application. While we initially started filtering IP addresses using iptables and a few crudely hacked rules, we knew something had to be done that was a little more permanent. Moving to MPM-Worker with PHP [...]]]></description>
		<wfw:commentRss>http://cd34.com/blog/webserver/ddos-attack-mitigation/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>WordPress Cache Plugin Benchmarks</title>
		<link>http://cd34.com/blog/scalability/wordpress-cache-plugin-benchmarks/</link>
		<comments>http://cd34.com/blog/scalability/wordpress-cache-plugin-benchmarks/#comments</comments>
		<pubDate>Thu, 04 Mar 2010 15:55:03 +0000</pubDate>
		<dc:creator>cd34</dc:creator>
				<category><![CDATA[Scalability]]></category>
		<category><![CDATA[performance]]></category>
		<category><![CDATA[Varnish]]></category>
		<category><![CDATA[wordpress]]></category>

		<guid isPermaLink="false">http://cd34.com/blog/?p=900</guid>
		<description><![CDATA[A lot of time and effort goes into keeping a WordPress site alive when it starts to accumulate traffic. While not every site has the same goals, keeping a site responsive and online is the number one priority. When a surfer requests the page, it should load quickly and be responsive. Each addon handles caching [...]]]></description>
		<wfw:commentRss>http://cd34.com/blog/scalability/wordpress-cache-plugin-benchmarks/feed/</wfw:commentRss>
		<slash:comments>25</slash:comments>
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