Nginx and Rails and PHP, Oh My!

As you could probably guess, my blog (and several sites of my friends) are hosted on a lovely Linux VPS provided by Linode.  I honestly can’t say enough nice things about the service and reliability I’ve received from Linode (and no they don’t pay me to speak highly of them!).  But that’s not really the point of this post.  The point is actually quite simple:  My VPS doesn’t have a lot of memory, and I’m always wary of my resource consumption.  A few months ago, I moved from Apache to lighttpd for this reason, alone.  Let’s face it… Apache is a memory hog, and that problem...