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root@ubuntu:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Codename: bionic
第一行有个127.0.0.53:53
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禁用NetworkManager 后,域名服务器被写入resolv.conf,无效的127.0.0.53也被写入,systemd-resolve提供的,可以防止解析主机名
如果不想将127.0.0.53写入的话,可以按照以下操作
$ sudo systemctl disable systemd-resolved
$ sudo reboot
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