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Tomcat is an application server from the Apache Software Foundation that executes Java servlets and renders Web pages that include Java Server Page coding. Described as a “reference implementation” of the Java Servlet and the Java Server Page specifications, Tomcat is the result of an open collaboration of developers and is available from the Apache Web site in both binary and source versions. Tomcat can be used as either a standalone product with its own internal Web server or together with other Web servers, including Apache, Netscape Enterprise Server, Microsoft Internet Information Server (IIS), and Microsoft Personal Web Server. Tomcat requires a Java Runtime Enterprise Environment that conforms to JRE 1.1 or later.
Apache Tomcat is a widely used Java application server with over million downloads per month. The wide success of Tomcat is due to its efficient, effective and light weight nature. Tomcat implements a servlet container and JSP, which is what majority of web applications depend on. Tomcat is not burdened by 20+ odd standards that form Java EE standard. As Apache Tomcat is not a Java EE engine, it can continue to stay light weight and meet the needs of web applications. While many other application servers came about in last decade, none have enjoyed the same level of success as Tomcat. As applications are rolled out to groups of multiple production servers, administrators need the tools to automate and control the application release process, reducing tedious manual work and the errors that often result. In addition, administrators and developers alike both need visibility into detailed performance metrics to pinpoint performance issues before they escalate, and to resolve them quickly without relying on guesswork. Please see the links on the right hand side to learn more about Tomcat topics.
JBoss is a division of Red Hat that provides support for the JBoss open source application server program and related services marketed under the JBoss Enterprise Middleware Suite (JEMS) brand. It is an open source alternative to commercial offerings from IBM WebSphere, Oracle BEA Services, and SAP NetWeaver. The JBoss applications server is a J2EE platform for developing and deploying enterprise Java applications, Web applications and services, and portals. J2EE allows the use of standardized modular components and enables the Java platform to handle many aspects of programming automatically. A beta version of JEMS is now available on Amazon’s cloud service EC2. Red Hat JEMS is available through subscriptions that include certified software, expert support, updates and patches. The JBoss application server is also available through JBoss.org, a community that provides free support for the server. JBoss is licensed under the GNU Lesser General Public License (LGPL).