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copied!<h2>In your question, you're talking about:</h2> <ol> <li><a href="http://developer.yahoo.com/performance/rules.html#expires" rel="nofollow">Adding Expire headers for caching</a> </li> <li><a href="http://developer.yahoo.com/performance/rules.html#split" rel="nofollow">Splitting resources across domains</a></li> </ol> <p>For Item #1, you can edit your httpd.conf/.htaccess file on your main domain (it doesn't hurt doing it on your whole website, no?)</p> <pre><code><IfModule mod_expires.c> ExpiresActive On ExpiresByType application/x-javascript A2592000 ExpiresByType image/gif A2592000 ExpiresByType image/jpeg A2592000 ExpiresByType image/png A2592000 </IfModule> </code></pre> <p>Item #2 doesn't need any Apache configuration - just configure your static.photography.example.com DNS entry with <em>CNAME photography.example.com</em>. That should do the trick.</p> <p>Or you can edit your httpd.conf and add a ServerAlias</p> <pre><code><VirtualHost xx.xxx.xxx.xx:80> DocumentRoot / ServerName photography.example.com ServerAlias static.photography.example.com </VirtualHost> </code></pre> <h2>So for now, you don't need a separate virtual host with dedicated Apache configuration.</h2> <p>Here are a few other reasons why you'd want <strong>a separate domain, and a separate virtual host with dedicated configuration</strong>:</p> <ul> <li>Your main domain has cookies and you want to <a href="http://developer.yahoo.com/performance/rules.html#cookie_free" rel="nofollow">use a cookie-free domain</a></li> <li>You <a href="http://developer.yahoo.com/performance/rules.html#cdn" rel="nofollow">actually want to use a CDN</a> (or your Amazon S3 account to reduce bandwith on your primary hosting) </li> </ul> <p>If you want one of those, or if your caching needs are too complex (you don't want to cache all JS/CSS/images, but rather a subset of it), then your only solution is: <strong>get your hands on your httpd.conf and write separate configurations for each domain</strong> </p>

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