请问 http204.sinaapp.com 这类返回 204 状态码的服务有什么作用或用途? - V2EX
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ZGLHHH

请问 http204.sinaapp.com 这类返回 204 状态码的服务有什么作用或用途?

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  •   ZGLHHH Nov 2, 2016 12607 views
    This topic created in 3462 days ago, the information mentioned may be changed or developed.
    5 replies    2016-11-03 09:28:42 +08:00
    DoraJDJ
        1
    DoraJDJ  
       Nov 2, 2016 via Android
    默认情况下, Android 会时不时访问这个地址:

    http://clients1.google.com/generate_204

    用来探测网络状态。在每次连 Wi-Fi 时,也会需要需要访问一下这个地址。

    但是就像你可能已经知道的那样,*.google.com 的访问在国内是有问题的。所以我们需要修改这个设置。

    @Livid - /t/303889
    ZGLHHH
        2
    ZGLHHH  
    OP
       Nov 2, 2016
    @DoraJDJ 就只有这个用途吗?
    DoraJDJ
        3
    DoraJDJ  
       Nov 2, 2016 via Android   1
    @ZGLHHH 好像最常用的用途就这个了,我自己也不怎么了解。
    dndx
        4
    dndx  
       Nov 3, 2016 via iPhone
    用来测试当前网络环境是否有 Captive Portal.
    lan894734188
        5
    lan894734188  
       Nov 3, 2016 via Android
    检测网络环境 是否需要验证登录之类的
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