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  2. ping (networking utility) - Wikipedia

    en.wikipedia.org/wiki/Ping_(networking_utility)

    ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It is available for virtually all operating systems that have networking capability, including most embedded network administration software.

  3. traceroute - Wikipedia

    en.wikipedia.org/wiki/Traceroute

    PathPing is a utility introduced with Windows NT that combines ping and traceroute functionality. MTR is an enhanced version of ICMP traceroute available for Unix-like and Windows systems. The various implementations of traceroute all rely on ICMP Time Exceeded (type 11) packets being sent to the source.

  4. Great Firewall - Wikipedia

    en.wikipedia.org/wiki/Great_Firewall

    Contrary to popular belief, [45] foreign DNS resolvers such as Google Public DNS IP address 8.8.8.8 are reported to work correctly inside the country; however, these DNS servers are also subject to hijacking as their connections are not encrypted: DNS queries do reach the DNS server, but if the request matches a banned keyword, the firewall ...

  5. Hongdu JL-8 - Wikipedia

    en.wikipedia.org/wiki/Hongdu_JL-8

    A low-wing monoplane design primarily constructed of aluminum alloys, the JL-8 / K-8 airframe structure is designed for an 8,000 flight hour service life.. The landing gear is of tricycle configuration, with hydraulically operated wheel brakes and nose-wheel steering.

  6. Social media - Wikipedia

    en.wikipedia.org/wiki/Social_media

    The PLATO system was launched in 1960 at the University of Illinois and subsequently commercially marketed by Control Data Corporation.It offered early forms of social media features with innovations such as Notes, PLATO's message-forum application; TERM-talk, its instant-messaging feature; Talkomatic, perhaps the first online chat room; News Report, a crowdsourced online newspaper, and blog ...

  7. Tencent - Wikipedia

    en.wikipedia.org/wiki/Tencent

    Tencent Holdings Ltd. (Chinese: 腾讯; pinyin: Téngxùn) is a Chinese multinational technology conglomerate and holding company headquartered in Shenzhen.It is one of the highest grossing multimedia companies in the world based on revenue.