On 11/10/2015 02:03 PM, Edward Ned Harvey (centos) wrote: > At work, we use some commercial software, that names RHEL6 as a supported OS, but not Centos6. I would like to know the difference between Centos and RHEL, in order to claim (or not) that we can support our users on Centos instead of RHEL. > > I see the release notes, that say "Packages modified by CentOS," but it's not clear what the modifications are. I have been browsing around for these details, and have not yet found specifics of *what* was modified in those packages. > > Can anyone please direct me toward details of what's modified in the packages that centos modifies? CentOS changes branding (in the source code) to comply with Red Hat's trademark requirements. In general we do not make changes to the base os other than those branding changes before we rebuild the source code. We also take out links to their Red Hat Network and instead do updates from our CentOS Mirrors. However, we build the source code in our closed build system on CentOS. Red Hat has their own closed build system that contains RHEL packages in which they build. This means that CentOS is not 'exactly' the same as RHEL .. so, not a clone. It SHOULD be functionally equivalent (ie, same commands, same services). CentOS also rebuilds the source code for updates that are released by Red Hat .. however we do not provide any 'software assurance' or guarantees for fitness of the software. We just rebuild the source code in the order it is released .. nothing more. If you require commercial support from an entity that releases software certified to run on RHEL, you need to ask them if they support said software on CentOS. Regardless of if they support it .. CentOS provides NO guaranteed support of any kind. If you require Service Level Agreement type support (updates within a certain amount of time, bugs fixed, etc.) then that is what RHEL is for. If CentOS works for you and you want to use it, that's why we build it .. but if you require some sort of assurance of fitness, especially some sort of guarantee of timeliness for response to bugs, etc .. then CentOS might not be what you are looking for. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 198 bytes Desc: OpenPGP digital signature URL: <http://lists.centos.org/pipermail/centos/attachments/20151110/50e78425/attachment-0004.sig>