问题：

运行 Ubuntu 17.10

我一直在尝试解决（呵呵）这个问题大约一个星期了，尽管有无数的谷歌搜索和大约 20 次不同的尝试，但我无法阻止 dnsmasq 定期导致我的 CPU 因以下违规者而飙升约一分钟：

• systemd-resolved
• systemd-journald
• dnsmasq

监控journalctl -f每次发生时我都会看到这一点：

达到最大并发 dns 查询数 (150)

伴随/前面是对某个域（通常是 ubuntu 连接检查）的疯狂请求循环，如下所示：

query[A] connectivity-check.ubuntu.com from 127.0.0.1
forwarded connectivity-check.ubuntu.com to 127.0.1.1
forwarded connectivity-check.ubuntu.com to 127.0.0.53
query[A] connectivity-check.ubuntu.com from 127.0.0.1
forwarded connectivity-check.ubuntu.com to 127.0.0.53
query[AAAA] connectivity-check.ubuntu.com from 127.0.0.1
forwarded connectivity-check.ubuntu.com to 127.0.0.53
query[AAAA] connectivity-check.ubuntu.com from 127.0.0.1
forwarded connectivity-check.ubuntu.com to 127.0.0.53
query[A] connectivity-check.ubuntu.com from 127.0.0.1
forwarded connectivity-check.ubuntu.com to 127.0.0.53
query[AAAA] connectivity-check.ubuntu.com from 127.0.0.1
forwarded connectivity-check.ubuntu.com to 127.0.0.53

我发现将/etc/resolv.conf更改为 …