抱歉，久等了。 据前所述，www.taptap.com <http://www.taptap.com/> 有一条CNAME记录，值为 04kuymntnujtuaz35le0osayeah81vxi.aliyunwaf.com.
而然 04kuymntnujtuaz35le0osayeah81vxi.aliyunwaf.com. 接收到带有 CSUBNET 扩展的DNS查询时，如果 Source Netmask 小于等于24，则不会返回任何数据。 如果不发送EDNS扩展请求，或 Source Netmask 大于 24，则aliyunwaf.com. <http://aliyunwaf.com.de/>的NS服务器能够正常返回。 另外，如果查询请求带了 Cookie 扩展，aliyunwaf.com. <http://aliyunwaf.com.de/> 的NS服务器也不返回任何数据。 测试命令：`dig +cookie @ns1.yundunddos.com. 04kuymntnujtuaz35le0osayeah81vxi.aliyunwaf.com.` 注：在最新版的dig中，+cookie是默认选项 目前已将 ecs-ipv4-bits 覆盖为25，www.taptap.com <http://www.taptap.com/> 已经可以正常解析。 > On 16 Dec 2017, at 22:25, Tong Hui <[email protected]> wrote: > > 同时 CC 给 TUNA。 > > 刚刚测试了一下 TUNA 的 DNS，解析 wx.qq.com 时出现问题，其他域名不能重现这个错误。 > > 2017-12-16 21:19 GMT+08:00 CHEN Ci <[email protected]>: >> 还有 dx.doi.org 从周中开始无法解析（科技网） >> >> >> On Friday, 15 December 2017 17:36:17 UTC+8, 邓俊晖 wrote: >>> >>> 前天www.taptap.com无法解析，昨天开始是QQ/微信等服务开始出现异常。 >> >> -- >> 您收到此邮件是因为您订阅了Google网上论坛上的“USTC_LUG”群组。 >> 要退订此群组并停止接收此群组的电子邮件，请发送电子邮件到[email protected]。 >> 访问此群组：https://groups.google.com/group/ustc_lug。 >> 要查看更多选项，请访问https://groups.google.com/d/optout。 > > > > -- > /*** > * @ 启智开源 编码自由 > * @ Open Mind, Open Source, Coding for Freedom! > * @ 佟辉 Tong Hui (Tony) > * @ Email tonghuix AT member DOT fsf DOT org > * @ Web https://tonghuix.io > * @ XMPP/Jabber tonghuix AT member DOT fsf DOT org > */ > > -- > > --- > You received this message because you are subscribed to the Google Groups > "TUNA 主邮件列表" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "TUNA 主邮件列表" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/d/optout.
