Systems Administration

Using Varnish and Pressflow (The Pantheon Project) together is an effective way to maximize the potential of your hosting environment, and can yield extraordinary results. The problem is, if you're not intimately familiar with Varnish, or the Linux command-line, getting it into a functional state can be something of a challenge. Out of the box, it is adequate at caching content for anonymous users, but that's where the fun ends.