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kasperd
Asked: 2019-01-04 11:22:35 +0800 CST

为什么当域解析成功时 Chromium 会报告 NXDOMAIN

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尝试在 StackExchange 站点上查看帖子中的图像时，我很惊讶地在 Ubuntu 18.04 上的 Chromium 中看到此错误消息：

无法访问此站点

找不到 i.stack.imgur.com的服务器 IP 地址。

DNS_PROBE_FINISHED_NXDOMAIN

为了找出发生了什么，我尝试运行tcpdump以查看 DNS 请求和响应。我试图重新加载给我错误的图像，这是我看到的 DNS 流量：

# tcpdump -pni any 'port 53'
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on any, link-type LINUX_SLL (Linux cooked), capture size 262144 bytes
20:10:17.618041 IP 127.0.0.1.42714 > 127.0.0.53.53: 3068+ A? i.stack.imgur.com. (35)
20:10:17.618080 IP 127.0.0.1.42714 > 127.0.0.53.53: 23569+ AAAA? i.stack.imgur.com. (35)
20:10:17.618861 IP 127.0.0.53.53 > 127.0.0.1.42714: 3068 13/0/0 CNAME i.stack.imgur.com.cdn.cloudflare.net., A 104.16.0.35, A 104.16.26.34, A 104.16.2.35, A 104.16.30.34, A 104.16.28.34, A 104.16.24.34, A 104.16.25.34, A 104.16.29.34, A 104.16.27.34, A 104.16.3.35, A 104.16.1.35, A 104.16.31.34 (277)
20:10:17.619395 IP 127.0.0.53.53 > 127.0.0.1.42714: 23569| 16/0/0 CNAME i.stack.imgur.com.cdn.cloudflare.net., AAAA 2001:67c:2b0:db32:0:1:6810:1f22, AAAA 2001:67c:2b0:db32:0:1:6810:1b22, AAAA 64:ff9b::6810:23, AAAA 2001:67c:2b0:db32:0:1:6810:223, AAAA 2001:67c:27e4:64::6810:123, AAAA 64:ff9b::6810:1f22, AAAA 2001:67c:27e4:64::6810:1f22, AAAA 2001:67c:27e4:64::6810:223, AAAA 2001:67c:27e4:64::6810:1b22, AAAA 2001:67c:27e4:64::6810:1922, AAAA 2001:67c:2b0:db32:0:1:6810:1d22, AAAA 64:ff9b::6810:123, AAAA 2001:67c:2b0:db32:0:1:6810:1e22, AAAA 64:ff9b::6810:1822, AAAA 2001:67c:2b0:db32:0:1:6810:1822 (505)

如您所见，DNS 解析成功。但是 Chromium 仍然向我显示相同的 NXDOMAIN 错误消息。当查找确实成功时，什么可能导致 Chromium 报告 NXDOMAIN？

chromium

1 个回答

  1. Best Answer

    有关 systemd-resolve 问题，请参阅启动板错误1804487和1805027。解决方法
    1) 添加软件包 libnss-resolve。2）直接在s链接
    中使用名称服务器（或将链接重定向到/etc/resolve.conf/run/systemd/resolve/stub-resolve.conf/run/systemd/resolve/resolve.conf

    • 2

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