Introduction

The Apache HTTP Server, commonly referred to as Apache, is web server software notable for playing a key role in the initial growth of the World Wide Web. In 2009, it became the first web server software to surpass the 100 million web site milestone. Apache was the first viable alternative to the Netscape Communications Corporation web server (currently known as Oracle iPlanet Web Server), and has since evolved to rival other Unix-based web servers in terms of functionality and performance. The majority of web servers using Apache run a Unix-like operating system.

References

1. http://en.wikipedia.org/wiki/Apache_HTTP_Server
2. http://httpd.apache.org
3. https://wiki.cse.buffalo.edu/services/content/web-servers