CentOS
CentOS (Community Enterprise Operating System) has been commonly used and totally free of charge as a Red Hat rebuild for many years. This is where Red Hat logos and branding are removed from the system and redistributed as "CentOS". This is not quite as bad as it may first seem. Red Hat uses the open source code and redistribution is totally within the remit of the GPL (GNU Public License) agreement. What you lose out on is support. So, you may well find CentOS more used within smaller business operations and academia (where external support is not as critical). Support for CentOS is available only through public forums. Of course, this means that there is no guaranteed service level available.
CentOS began its operation in 2004 and is ...
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