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	<title>The AppGirl Blog &#187; httpd</title>
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	<link>http://appgirl.net/blog</link>
	<description>it&#039;s a wild wild web out there</description>
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		<title>Speedy Web</title>
		<link>http://appgirl.net/blog/speedy-web/</link>
		<comments>http://appgirl.net/blog/speedy-web/#comments</comments>
		<pubDate>Wed, 02 Jun 2010 19:57:21 +0000</pubDate>
		<dc:creator>appgirl</dc:creator>
				<category><![CDATA[httpd]]></category>
		<category><![CDATA[web X.0]]></category>

		<guid isPermaLink="false">http://appgirl.net/blog/?p=415</guid>
		<description><![CDATA[With Google incorporating a &#8220;website speed&#8221; factor into site rankings, it has created renewed interests in rendering performance of web sites/apps. As a techie who has spent most of her career around web app delivery &#38; performance, I&#8217;d like to highlight some (known) techniques and offer a few insights. Browser-Side Optimization Steve Souder identified 14 [...]]]></description>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>httpd: accelerate web page performance with mod_expires</title>
		<link>http://appgirl.net/blog/httpd-accelerate-web-page-performance-with-mod_expires/</link>
		<comments>http://appgirl.net/blog/httpd-accelerate-web-page-performance-with-mod_expires/#comments</comments>
		<pubDate>Tue, 18 Aug 2009 04:45:49 +0000</pubDate>
		<dc:creator>appgirl</dc:creator>
				<category><![CDATA[httpd]]></category>

		<guid isPermaLink="false">http://appgirl.net/blog/?p=8</guid>
		<description><![CDATA[More and more goodies are packaged with apache2, allowing one to perform front-end engineering right out of the box. Here are a tip on using mod_expires to maximize the use of browser cache and accelerate performance for repeat visitors. mod_expires generates Expires and Cache-Control HTTP headers according to user-specified criteria. These HTTP headers instruct the [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Making the case for a virtualized hardware appliance</title>
		<link>http://appgirl.net/blog/making-the-case-for-a-virtualized-hardware-appliance/</link>
		<comments>http://appgirl.net/blog/making-the-case-for-a-virtualized-hardware-appliance/#comments</comments>
		<pubDate>Thu, 18 Jun 2009 05:58:19 +0000</pubDate>
		<dc:creator>appgirl</dc:creator>
				<category><![CDATA[httpd]]></category>
		<category><![CDATA[web X.0]]></category>
		<category><![CDATA[application]]></category>
		<category><![CDATA[architecture]]></category>
		<category><![CDATA[cloud]]></category>
		<category><![CDATA[clustering]]></category>
		<category><![CDATA[load-balancing]]></category>
		<category><![CDATA[virtualization]]></category>

		<guid isPermaLink="false">http://appgirl.net/blog/?p=83</guid>
		<description><![CDATA[As Data Center infrastructures become more virtualized, the desire for virtualized network services increases. We see 2 types of offerings: virtual appliances delivered in a VM image, such as the Netscaler VPX from Citrix hardware appliances that can be virtualized, such as Cisco ACE or ASA I want to share this devcentral article that reminds [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Sizing Concurrent Users &amp; Connections in a Web Environment</title>
		<link>http://appgirl.net/blog/sizing-concurrent-users-connections-in-a-web-environment/</link>
		<comments>http://appgirl.net/blog/sizing-concurrent-users-connections-in-a-web-environment/#comments</comments>
		<pubDate>Sat, 18 Apr 2009 06:08:56 +0000</pubDate>
		<dc:creator>appgirl</dc:creator>
				<category><![CDATA[httpd]]></category>
		<category><![CDATA[web X.0]]></category>

		<guid isPermaLink="false">http://appgirl.net/blog/?p=95</guid>
		<description><![CDATA[Calculating concurrent connections for new web applications isn&#8217;t an exact science. Fortunately Sun published a guide with an overview of the sizing process that can be applied to most web applications. In summary, here are various formulas that you may find useful in helping your customers size their environment: maximum number of concurrent sessions = [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<item>
		<title>Google Tech Talk &#8211; A look at Web Security</title>
		<link>http://appgirl.net/blog/google-tech-talk-a-look-at-web-security/</link>
		<comments>http://appgirl.net/blog/google-tech-talk-a-look-at-web-security/#comments</comments>
		<pubDate>Tue, 26 Aug 2008 06:17:59 +0000</pubDate>
		<dc:creator>appgirl</dc:creator>
				<category><![CDATA[httpd]]></category>

		<guid isPermaLink="false">http://appgirl.net/blog/?p=107</guid>
		<description><![CDATA[This is a bit dated (April &#8217;06) but still very much relevant. This video is a tech talk delivered at Google by security expert Mike Andrews. n this TechTalk, Mike Andrews examines how web applications are attacked, walk through a testing framework for evaluating the security of an application and take some deep-dives into a [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<title>clustering versus load-balancing</title>
		<link>http://appgirl.net/blog/clustering-versus-load-balancing/</link>
		<comments>http://appgirl.net/blog/clustering-versus-load-balancing/#comments</comments>
		<pubDate>Tue, 09 Oct 2007 05:22:42 +0000</pubDate>
		<dc:creator>appgirl</dc:creator>
				<category><![CDATA[httpd]]></category>
		<category><![CDATA[clustering]]></category>
		<category><![CDATA[load-balancing]]></category>

		<guid isPermaLink="false">http://appgirl.net/blog/?p=42</guid>
		<description><![CDATA[Seems that often times the concept of clustering is often mixed up with that of load-balancing. I thought I&#8217;d quickly write something up to help clarify the difference between the two. Clustering &#8212; Making a group of application providers appear as one application provider. A cluster generally consists of 2 servers that share common storage [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<item>
		<title>when web people think architecture</title>
		<link>http://appgirl.net/blog/when-web-people-think-architecture/</link>
		<comments>http://appgirl.net/blog/when-web-people-think-architecture/#comments</comments>
		<pubDate>Tue, 18 Sep 2007 05:31:13 +0000</pubDate>
		<dc:creator>appgirl</dc:creator>
				<category><![CDATA[httpd]]></category>

		<guid isPermaLink="false">http://appgirl.net/blog/?p=49</guid>
		<description><![CDATA[I don&#8217;t recall when or how I found highscalability.com but it&#8217;s one of the sites that I bookmark and review periodically. Finally, a website that caters to us application/server folks that need to know what it takes to build an environment that support gazillion users. Each architecture write up addresses the platforms used by each [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>local &amp; global load balancing on the cheap</title>
		<link>http://appgirl.net/blog/local-global-load-balancing-on-the-cheap/</link>
		<comments>http://appgirl.net/blog/local-global-load-balancing-on-the-cheap/#comments</comments>
		<pubDate>Fri, 14 Sep 2007 05:37:38 +0000</pubDate>
		<dc:creator>appgirl</dc:creator>
				<category><![CDATA[httpd]]></category>
		<category><![CDATA[application]]></category>
		<category><![CDATA[availability]]></category>
		<category><![CDATA[dns]]></category>
		<category><![CDATA[load-balancing]]></category>
		<category><![CDATA[performance]]></category>
		<category><![CDATA[web]]></category>

		<guid isPermaLink="false">http://appgirl.net/blog/?p=57</guid>
		<description><![CDATA[Not many people know what LVS is. I ran World Health Organization&#8217;s public website (www.who.int) using a pair of Compaq DL360 servers running Linux Virtual Server, which is an open-source load-balancer. And guess what, during SARS, we saw over 14 million hits a day at the peak. While I don&#8217;t have the specific cps / [...]]]></description>
		<wfw:commentRss>http://appgirl.net/blog/local-global-load-balancing-on-the-cheap/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>tuning apache and a different perspective on web app performance</title>
		<link>http://appgirl.net/blog/tuning-apache-and-a-different-perspective-on-web-app-performance/</link>
		<comments>http://appgirl.net/blog/tuning-apache-and-a-different-perspective-on-web-app-performance/#comments</comments>
		<pubDate>Fri, 14 Sep 2007 05:35:03 +0000</pubDate>
		<dc:creator>appgirl</dc:creator>
				<category><![CDATA[httpd]]></category>
		<category><![CDATA[apache]]></category>
		<category><![CDATA[applications]]></category>
		<category><![CDATA[performance]]></category>
		<category><![CDATA[web]]></category>

		<guid isPermaLink="false">http://appgirl.net/blog/?p=54</guid>
		<description><![CDATA[Here&#8217;s another article that I can really relate to. Typically a standard install of Apache has lots of extra (often unused) features and won&#8217;t take full advantage of all system resources. There are all sorts of things you can do (like recompiling to support more concurrent connections, which is what I&#8217;ve had to do). Tuning [...]]]></description>
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		<slash:comments>0</slash:comments>
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