This document provides a step-by-step guide on configuring Apache Solr with a Drupal 7.x installation, including the necessary installation and setup for Java, Tomcat, and Solr. It details commands for installing the software, changing Tomcat's listening port, and creating Solr cores, specifically illustrating the setup for a 'drupal' core. Following these instructions allows the user to access the Solr admin interface at a specified local URL.