This image contains PostgreSQL 8.4.20 on CentOS 6 and includes support. CentOS is a Linux distribution that provides an enterprise-class, community-supported computing platform functionally compatible with its upstream source, Red Hat Enterprise Linux (RHEL). CentOS developers use Red Hat's source code to create a final product very similar to RHEL. Red Hat's branding and logos are changed because Red Hat does not allow them to be redistributed. Technical support is primarily provided by the community via official mailing lists, web forums, and chat rooms. The project is affiliated with Red Hat but aspires to be more public, open, and inclusive. While Red Hat employs most of the CentOS head developers, the CentOS project itself relies on donations from users and organizational sponsors.