In this tutorial, we will show how to install Railo on a CentOS VPS. Railo is an open source software written in Java that implements CFML (ColdFusion Markup Language). Railo has an incredibly fast and powerful CFML engine which allows developers to create and deploy complex web applications with the greatest of ease. Railo web application server has a lot of services like session management, database connectivity, search engine, mail, scheduling, support for REST, XML, JSON etc. which will make easier the development of your web apps. The newest version of Railo comes with a plenty of new and extended functions and tags, such as QueryExecute, QueryRowData, isEmpty, getCanonicalPath, support for GZip Compression etc.