一、在/etc/NetworkManager/dispatcher.d下创建脚本并编辑mydns.sh
sudo vim /etc/NetworkManager/dispatcher.d/mydns.sh 添加内容如下：
#!/bin/bash
cp -f /etc/resolv.conf.mydns /etc/resolv.conf保存并退出:wq
赋予可执行权限
sudo chmod +x /etc/NetworkManager/dispatcher.d/mydns.sh
二、在/etc下创建resolv.conf.mydns并编辑文件
sudo vim /etc/resolv.conf.mydns添加自己的dns，内容如下:
nameserver 114.114.114.114
nameserver 8.8.8.8保存并退出:wq
三、开启NetworkManager-dispatcher守护进程
sudo systemctl enable NetworkManager-dispatcher到此也就结束了