• https://blog.csdn.net/weixin_45982158/article/details/116134993

1.编辑netplan下的yaml文件
2.重启网络 netplan apply
3.删除原resolv.conf， rm -rf /etc/resolv.conf
4.创建软连接，ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf