CentOS 5.8 64bit
The CentOS image was officially applied and tested by Alibaba Cloud. It conforms fully with the upstream vendor's redistribution policy and aims to be 100% functionally compatible with RHEL (CentOS mainly changes packages to remove upstream vendor branding and artwork). CentOS Linux is no-cost and free to redistribute.
CentOS 5.8 is the eighth update to the CentOS 5 distribution series. It contains a lot of bugfixes, updates and new functionality. Packages that have been upgraded in 5.8 since the 5.7 release include acl, acpid, alsa-utils, anaconda, aspell, aspell-sr, audit, autofs, bind, bind97, binutils, boost, bootparamd, busybox, cdparanoia, certmonger etc.
We recommend reviewing the CentOS on wiki page at https://wiki.centos.org/Manuals/ReleaseNotes/CentOS5.8 for more details.