Open source licensing and the Red Hat business model

Posted by James P. on Stack Overflow See other posts from Stack Overflow or by James P.
Published on 2010-04-13T20:56:22Z Indexed on 2010/04/14 0:23 UTC
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licensing

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open-source

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commercial

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redhat

How can licenses be applied to have two parallel versions of software, one freely available and another commercial, like Red Hat has done with it's version of Linux? Also, can snippets of code be freely ported from one to the other or must it be designed separately?

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