Jem Berkes <jb@users.pc9.org> writes:

]> Can opensource code (RH/Debian/SUSE) modified for inhouse firewall
]> platform and can be sold in for commercial use?. Is this GPL coers
]> this?. Or Is there any royalty or licensing fee has to pay per unit?.
]> What if some modifications does for some of the code?. Thanks.

]You can sell the software/firmware to your customers for $1 million
]dollars, but once it's provided in binary or compiled form to the customers
]you must also provide them with source code should they ask for it. You can
]not provide the binary without offering the source.

]And once they have the source code, there is nothing that prevents them
]from modifying it or redistributing it.

Well, their is your copyright which prevents this, but under the GPL you
must also distribute your code under the GPL.