If you write JavaServer Pages or use Servlets to provide the functionality of your Web site, you’re probably already aware of Tomcat. Tomcat is the Apache Foundation’s reference implementation of the JavaServer Pages and Servlet technologies. Tomcat 3 covers the Servlet 2.2 and JSP 1.1 revisions, while Tomcat 4 covers Servlet 2.3 and JSP 1.2. Tomcat itself is part of the Jakarta Project, which is a suite of Java development tools developed through the Apache foundation.Installing Tomcat itself is relatively easy — download the corresponding installer from the Tomcat pages at Apache, expand the files or run the installer, and then use the corresponding script to start up the Tomcat service. Tomcat has its own built-in HTTP service that handles and services requests from clients. We’ll look at the specific steps later in this article. Read on to find out how we can integrate Tomcat with Apache.