This document outlines security measures to protect a web server. It first introduces web servers as remote computers that deliver web content using HTTP and serve files like web pages. It then discusses features of web servers like virtual hosting and bandwidth throttling. The document defines security as freedom from danger and harm, including data security and uninterrupted service. Finally, it recommends security measures for web servers such as removing unnecessary services, restricting remote access and permissions, monitoring the server, keeping separate environments, using security tools, installing patches, and staying informed about new attacks.