图片用 cdn 是不是等于把自己暴露在黑暗森林中?等着人家刷爆你的流量 - V2EX
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图片用 cdn 是不是等于把自己暴露在黑暗森林中?等着人家刷爆你的流量

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  •   mysql Oct 27, 2017 2558 views
    This topic created in 3103 days ago, the information mentioned may be changed or developed.

    目前只敢用免费的 cdn, 不敢用收费的,怕一夜之间, 什么都没有了

    这样的担心是不是多余的 :)

    7 replies    2017-10-27 14:24:42 +08:00
    scys
        1
    scys  
       Oct 27, 2017
    刷爆钱包还是刷爆自己服务,本来 CDN 不是给个人准备,个人还要“内容分发网络”这种商业服务?
    楼主了解下 CDN 由来和作用。
    ryd994
        2
    ryd994  
       Oct 27, 2017 via Android   1
    所以 cloudflare 无限免费了
    其实正规 cdn 都会免去攻击流量,因为那算是他们没能挡住攻击,有责任
    但是很多时候不是这么好界定,多付点钱有可能,倾家荡产不可能
    ihacku
        3
    ihacku  
       Oct 27, 2017 via iPhone
    有盗链
    LxExExl
        4
    LxExExl  
       Oct 27, 2017   1
    @scys v2 必备 io 域名+CDN+各种反代正代留言板
    612
        5
    612  
       Oct 27, 2017 via iPhone
    加个 refer 头,防盗链,只限定你的自己能调用就行了呀
    0ZXYDDu796nVCFxq
        6
    0ZXYDDu796nVCFxq  
       Oct 27, 2017   1
    几种方案:
    1. referer 防盗链。不过刷流量只需要设置个 referer 头就破了。
    2. 鉴权。比如根据用户 IP 给 CDN 的资源加个请求参数,CDN 校验这个参数是否合法。缺陷:移动、鹏博士、广电这种出口混乱的可能无法访问。
    3. 校验 cookie。主站 set-cookie,然后 CDN 校验 cookie 合法。

    1 几乎所有 CDN 都支持
    2、3 得看 CDN 是否有这个功能,另外网站代码也要修改
    0ZXYDDu796nVCFxq
        7
    0ZXYDDu796nVCFxq  
       Oct 27, 2017
    补充一下示例:
    https://docs.upyun.com/cdn/config/#65-token

    如果你的主域是动态生成的,那给静态资源加上 token 即可
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