XAMPP - XAMPP is a free and open-source cross-platform web server that is primarily used when locally developing web applications.
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
Chef - Automation for all of your technology. Overcome the complexity and rapidly ship your infrastructure and apps anywhere with automation.