This chapter is a guide to everything about installing Liferay. Whether you choose a Liferay bundle or an existing application server, Liferay Portal integrates seamlessly with your enterprise Java environment. It is supported on more application servers than any other portal platform, allowing you to preserve your investment in your application server of choice, or giving you the freedom to move to a different application server platform. Liferay is committed to providing you this freedom: we have 100 test servers certifying our builds with roughly 10,000 tests per version of Liferay Portal. Each of those tests must be run on all of our different supported combinations of application servers, databases, and operating systems. So you can be sure that we are committed to supporting you on your environment of choice. Liferay Portal won't get in your way, and you can feel safe knowing that you have the freedom to use the software platform that is best for your organization, and Liferay Portal will run and perform well on it.