mcclnx mcc wrote: > ORACLE unbreak Linux and CENTOS both source code come from Redhat > LINUX. Does there have other difference between CENTOS and ORACLE Linux? ok, you seem confused and seem to be buying into the marketing that oracle sends down the line. The 1 major difference is that CentOS really is binary compatible with upstream RedHat. Oracle isnt. They ( oracle ) patch and change gcc / glibc - use a custom kernel, modify configs, remove and add packages to the distro enough that they cant and do not have basic reproduceability that one would inherit into CentOS from Redhat[1]. Also, oracle lacks credible inhouse support. If you really want to get a contract, go with RHEL. or with CentOS and your local vendor. imho the support you get from the local vendor and CentOS is way better than what Oracle are able to offer for a linux OS. Oracle are also not open source friendly - their sources and updates are not publicly listed[2]. Also, dont buy into that 'oracle test a lot more' - they dont. Their packages are inherited from CentOS and they actually rely on the testing that we do with the packages. - KB [1] Oracle Linux on a specific machine was only able to hit 12k emails per minute, whereas on CentOS and RHEL we got 18000 emails per minute. Same machine, same kickstart configs and the same package manifests + configs. [2] If someone knows where they are - can you please tell me ?