Check the listing for details. CentOS 7 / 8 / 9 Linux DVD / USB Flash Drive - (Red Hat RHEL Alternative). Condition: Brand New. Listed at 9.99 USD. CentOS 7 / 8 Linux Install DVD / USB Flash Drive - (Red Hat RHEL Alternative) CentOS full install software on bootable DVD-R or USB flash drive. BUY NOW CentOS Linux provides a free and open source computing platform to anyone who wishes to use it. CentOS Linux releases are built from publicly available open source source code provided by Red Hat, Inc for Red Hat Enterprise Linux. This source code is available on the CentOS Git website.CentOS Linux is the Community Development Platform for the Red Hat family of Linux distributions.CentOS conforms fully with Red Hat, Inc's redistribution policies and aims to be functionally compatible with Red Hat Enterprise Linux. CentOS mainly changes packages to remove trademarked vendor branding and artwork.CentOS Linux does not contain Red Hat Enterprise Linux or Fedora Linux; nor does it have any of their certifications, although it is built from the same source code as the Red Hat Enterprise Linux.CentOS Linux is a rebuild of Red Hat Enterprise Linux (RHEL). As such, it is downsteam from RHEL. CentOS Linux release version numbers reflect the date of the RHEL release on which they are based. For example, CentOS 8.2105 is a rebuild of RHEL 8.3, which released in May of 2021.CentOS Stream, on the other hand, is the upstream, public development branch for RHEL. Specifically, CentOS Stream 8 is the upstream for the next minor release of RHEL 8, CentOS Stream 9 for the next minor release of RHEL 9, and so on.