Go2Linux posted a guide about installing Nginx on Slackware Linux

Ningx is a great web server, working with static content, it is a great option to serve .css .js and .html files.
If you need to run scripts, like php or perl, you can always send those requirements to Apache, and make Nginx work as a reverse proxy server.
Why Slackware Linux?. Because it is small, stable and fast, I like to have Nginx running on a small VPS alone, and sending script requirement to an Apache server behind, running in another VPS.
If you do not like Slackware, you may also use this guide, but install nginx using your distribution package manager, or also compiling from sources, as I am going to do here.

Scope
This article will cover:

Installing Nginx on Slackware Linux in a VPS server
Configure Nginx as reverse proxy for Apache Server

  How to: Install fast web server Nginx + Slackware - reverse proxy