Red Hat Linux was known as Linux distribution to which [sa] of being able use port was received free of charge.
The red hat participates in the Fedora project as a sponsor with the red hat in an independent organization. Moreover, the engineer is sent to the development of Fedora that is the Linux distribution that the Fedora project develops.
A free Linux distribution will be made to be become independent, and the red hat concentrate on development and the support of Red Hat Enterprise Linux that is the Linux distribution from which only corporate charge is offered.