Allyourtech.com has made a small tutorial on setting up a local web server in Debian GNU/Linux.
The tutorial is here.
Any web developer, designer, or webmaster can benefit from having a local web server. Even if that developer has no interest in securing and maintaining the server his or her websites live on, a local server can act as a convenient mirror for testing updates, trying new designs, and other general sand-boxing activities.
Web developers whose hosts utilize the popular LAMP platform (Linux + Apache + MySQL + PHP) are frequently hit with a dilemma. Since understanding Linux is not a prerequisite for website administrators, many of them lack the knowledge necessary for setting up a LAMP server from scratch (or at least they may think so). But thanks to the improved package management on Linux distributions like Debian, installing a functional web server is not nearly the chore it was just a couple years ago.