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Date:      Tue, 16 Jun 2020 09:34:26 +0100
From:      Ottavio Caruso <>
To:        FreeBSD Mailing List <>
Subject:   Re: question about the copyright
Message-ID:  <>
In-Reply-To: <>
References:  <>

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On Tue, 16 Jun 2020 at 08:27, Warren Hua <> wrote:
> Hello
> I read through this guide:
> but I am not sure, if I add one or more customized modules (written or
> modified by ourselves) to freebsd kernel, and sell the biz service based
> on this freebsd hosting, does it break the copyright?

Adding modules and then selling the product is not a problem in
itself. The problem is: what licence so you want to attach to the new
product? For example, if you did that to the Linux kernel, your only
option would be to distribute the new kernel under the GPLv2. I can
only guess that you could make a proprietary product out of FreeBSD
just by  adhering to condition 1 and 2 of the above mentioned licence.
Or, even better, you can sell the product under the FreeBSD licence.

Ottavio Caruso

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