" By any number of different measures, Red Hat Enterprise Linux
(RHEL) currently is the established leader in the North American
enterprise Linux space. Unlike its cousin Fedora (which is free) or
its Red Hat Linux ancestors, RHEL can sometimes have an unpalatable
cost associated with it (check out this graph on current server
subscription costs). Not everyone needs the excellent support
offered by Red Hat for RHEL and not everyone can afford to upgrade
their systems three times a years with Fedora. What's a penniless
admin to do? Send in the clones.
"Thanks to Red Hat's commitment to the principles of open source
as well as its open source licensed software utilization, clones of
RHEL are available. The clones are not deformed knockoffs of RHEL's
splendor rather they are shadows of RHEL that offer most of the
same packages as RHEL (without Red Hat logos and trademarks) and in
at least one case also promise errata updates at a near Red Hat
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