This month’s Linux Format Magazine came with CentOS 5.2 on the disc. CentOS, in case you don’t know, is a community supported version of Red Hat Enterprise Linux. (RHEL) Again, in the unlikely case you don’t know - Red Hat is required to supply the source code to all GPL code it uses in RHEL. What they don’t have to do is supply the Source RPMs which make it extremely easy for a distro like CentOS to exist. They can take the SRPMs and just remove the Red Hat artwork/logos and repackage it off as their own. The GPL allows this. Why in the world would Red Hat do this? They are, in a way, helping for a gratis version of their distro to exist and take away money that might otherwise go to them.