Copyright License Agreement for the Linux document plan

Article Title: Copyright License Agreement for the Linux Documentation Program. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
The following copyright agreement applies to all works under the Linux document plan. Please read this agreement carefully. It is similar to the General Public License (GPL), but there are several different conditions. If you have any questions, contact the organizer of the LDP, whose e-mail address is the mdw@sunsite.unc.edu. The Manual of the Linux document plan of the copyright license agreement can be reproduced and released in whole or in part, but the following conditions must be observed: All the manuals of the Linux document plan are copyrighted by their respective authors, they are not in the public domain. * The above copyright statement and license statement must be fully retained in any whole or part of the reproduction.
* Any translation or derivative product of Linux Installation and Getting Started must be recognized by the author before release.
* If You Want To partially publish "Linux Installation and Getting Started", you must provide instructions for obtaining the full version of this Manual and methods for obtaining the full version.
* In other works, a small amount of content in the Manual may be reasonably referenced for comments or instructions, and may not be restricted by the license statement.
* The GNU General Public License Agreement referenced below can be copied under the conditions specified by it.
These guidelines are an exception to those who aim at teaching and research. They are here only to protect the rights and interests of authors rather than to restrict educators and learners. All source code in Linux Installation and Getting Started complies with the GNU General Public License protocol, which can be obtained through anonymous FTP from ftp://prep.ai.mit.edu/pub/gnu/copying.
Publish LDP Manual
If you are a publishing company and are interested in publishing LDP manuals, read the following content.
According to the license agreement provided in the previous section, anyone is allowed to publish and publish identical copies of the LDP manual without the need for our explicit permission. However, if you want to publish a translation or derivative work based on any LDP manual, you must obtain the author's permission before publishing the work. All LDP manual translations and derived works must accept the Linux Documentation License Agreement provided in the previous section, that is, if you plan to release a translation of a manual, according to the conditions described in the license agreement, it must be freely published. Of course, you may sell the LDP manual page for profit purposes. We also support this, but remember that because LDP manuals can be freely released, as long as they are willing, anyone can copy or publish them for free.
We don't need you to pay us royalties from the profits you get from the sales LDP manual; however, if you do sell LDP manuals for profit purposes, we recommend that you either provide the author with a royalty or donate part of your income to the author, LDP, or linux development community, you may also mail the author one or several LDP manuals you are publishing for free. Thank you for your support for LDP and linux domains. We would like to learn about any plan to publish or release the LDP manual so that we can know how to get them. If you are publishing or preparing to publish any LDP manual, please send e-mail to Matt Welsh at mdw@sunsite.unc.edu. We encourage linux software vendors to publish LDP manuals (such as Linux Installation and Getting Started) with their software. The LDP manual is intended to become a "formal" linux document. We hope that the mail order publisher will bundle the LDP manual with the software. As LDP manuals become increasingly mature, achieving this goal will be closer and closer to us.
(The following content is not part of the License)
The above translation is from RedHat Linux book published by the Mechanical Industry Publishing House.
However, referring to the original English text, I think there are some mistakes in the above translations. I will list the following: (I have not modified the original translations to respect the original translators)
1. The second paragraph of the copyright agreement, the last sentence translated: "They are not in the public domain ". THE original Article is: "they are not in the public domain." I think: "THEY ARE NOT PUBLIC ". More suitable. This is because the term "public domain" refers to public land and can be naturally extended to the meaning of public items.
2. In the last section of the Copyright License Agreement, the first sentence is: "These guidelines are not applicable to persons for the purpose of teaching and research. "Original:" Exceptions to these rules may be granted for academic purposes: Write to the author and ask. "I think:" These guidelines may not apply to people who are interested in academic research: please contact the author and ask. "More suitable. This is because academic means academic, theoretical, rather than teaching. The above translation also ignores the expression of "possibility" and the requirements for the author's inquiry.
In addition, the e-mail address given in the translation, which is in contact with the LDP organizer, and the address of the original English text that I received from http://metalab.unc.edu/mdw/linux.htmlis mdw@metalab.unc.edu.