As you may have heard, the creators of WordPress has created a new plugin called JetPack. While I will not explain it as the link to the left will explain it far more easy then me (although this link is a good place to start with: Jetpack to the WP.com Cloud) , I am posting about how it may have issues with Lighttpd.
When it first came out I decided to give it a try and it never worked. Posted on Twitter and people advised about disabling cache software like WP Super Cache or W3 Total Cache. Either way, it never worked. The next thing was to disable CloudFlare which also never worked.