News on China's scientific and technological development.

Discussion in 'Members' Club Room' started by Quickie, Dec 9, 2008.

  1. supercat
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    supercat Junior Member

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    I'm not sure Shenzhen, Beijing, or Shanghai is the top performing city in China's own national college entrance exam (Gaokao). I'm not sure Jiangsu and Zhejiang are the best performing provinces in China's Gaokao either. There might be better performing cities and provinces in China than those. On the other hand, I think one of the most important reasons that B-S-J-Z were chosen to participate in the 2018 PISA was because these regions matched the conditions of the core OECD nations best in terms of income and development, more so than other poorer regions of China.
     
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  3. Jura
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  4. supercat
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    https://asia.nikkei.com/Spotlight/Comment/Huawei-breaks-free-from-Trump-s-tech-trap
     
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  5. Just4Fun
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    Just4Fun Junior Member
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    Now, I read the following news from a Chinese website.

    工信部批准中国信通院设立域名根服务器
    https://www.guancha.cn/politics/2019_12_07_527653.shtml?fixcomment=18957383

    The Chinese domain name system (DNS) root servers are IPv6-based, while the US DNS root servers are IPv4-based. China has set up 25 IPv6 root servers globally since 2016. The Chinese DNS root servers are located in 16 countries. The Chinese DNS system is completely compatible with the US DNS system, but the US system is not completely compatible with the Chinese system. Now the world Internet is served by 25 Chinese DNS IPv6 root servers, together with 14 US DNS IPv4 root servers.


    China is now ready for a US-initiated Internet de-couple. The biggest question now is: Is the US ready for it? Will the US upgrade its IPv4 system to IPv6? Money! Money! Money! Who is going to pay for the upgrade?

    The following is its English version.
    ========================================
    China greenlights establishment of root server
    http://www.xinhuanet.com/english/2019-12/08/c_138613999.htm

    Source: Xinhua| 2019-12-08 03:02:14|Editor: yan

    BEIJING, Dec. 7 (Xinhua) -- China's Ministry of Industry and Information Technology (MIIT) has approved the establishment of a domain name system (DNS) root server by a research institute Friday.

    The China Academy of Information and Communications Technology (CAICT) has been permitted to set up a root server and a corresponding operating organization, the MIIT said, requiring that the academy observe relevant laws and regulations and be subject to supervision and inspection.

    DNS translates easily-remembered domain names to numerical IP addresses, which can be recognized and processed through the Internet. It facilitates the use of the Internet by locating and identifying online resources.

    As one of the most important infrastructure, root servers are essential to the Internet and concern Internet operations and information security.

    While ensuring the stable operation of the server and providing quality service to users, the CAICT should also protect users' information security and safeguard national interests, the MIIT said.
     
    #5145 Just4Fun, Dec 7, 2019
    Last edited: Dec 7, 2019
  6. supercat
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  7. Jura
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    Today at 12:01 PM
    later got curious, read both articles;

    the data:
    [​IMG]


    the fit:
    [​IMG]
    (note on this very special occasion I don't say what values on the ordinate represent :-(


    residuals of the fit (of course rounded to nearest, ehm, integer):
    -34
    -24
    -1
    123
    26
    -66
    -193
    145

    make whatever conclusion you will
     
  9. solarz
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  10. taxiya
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    The US intention is dominance by threatening "de-couple others", that is to have the sole ipv4 Master Root Server in US control.
    However, I don't think in case of ipv6, anyone has the chance to decouple anyone. So there is no such question "is the US ready for it" because nobody ever had a chance to solely owns ipv6 master root server from day one.

    Ipv4 started as a US defense department project, later was handed over to civilian control but never outside US. It owns Ipv4, so the possibility to de-couple anybody. Ipv6 on the other hand was NEVER a US project, so there was never a chance.

    See the ipv6 root server's location from the guancha article.
    [​IMG]

    There are three Master root servers, with one in China, US and Japan respectively. There are many Slave root servers in many other countries. The master servers are on equal footing, meaning they sync with one another, keeping records identical. The slave servers will READ from masters. Hypothetically if US want to cut China out of internet as in ipv4, it will cause itself out of sync with not only China but also Japan. The slave servers will have to choose which master's record to trust. If the DNS specification use a voting algorithm to deal such situation, all slave servers will choose to read the Chinese and Japanese servers, effectively US blocks itself out of the world. This does make the ipv6 world democratic while ipv4 was dictatorial.

    In the future, there could be more master root servers built in other countries, I am sure at least EU will build one in the near future. This distribution of master servers makes de-coupling others self-destructive.
     
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