百度是怎样检测异常流量的?比如爬虫 - V2EX
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workaholic

百度是怎样检测异常流量的?比如爬虫

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  •   workaholic Mar 11, 2013 3846 views
    This topic created in 4794 days ago, the information mentioned may be changed or developed.
    今天用服务器爬百度,只有几分钟,就被百度给屏蔽了...... 求大牛指导
    7 replies    1970-01-01 08:00:00 +08:00
    wtser
        1
    wtser  
       Mar 11, 2013
    爬虫也有名字的,在useragent中有显示,通过检测UA就可以知道你是爬虫,当然也可以检测你的行为特征
    scriptkids
        2
    scriptkids  
       Mar 11, 2013
    频率..
    workaholic
        3
    workaholic  
    OP
       Mar 11, 2013
    @scriptkids 恩,少量多次^_^
    workaholic
        4
    workaholic  
    OP
       Mar 11, 2013
    @wtser 恩,useragent好解决,行为得谨慎一些
        5
    yangruixuan  
       Mar 12, 2013
    频度控制
    tysx
        6
    tysx  
       Mar 13, 2013
    同一个IP的并发连接数
    workaholic
        7
    workaholic  
    OP
       Mar 13, 2013
    @tysx 我用的php,应该是单线程的。不过我发现流量低谷(比如凌晨)的时候比较松,其他时间就得少量多次了
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