1.輸入該命令按回車(chē)鍵：vi /etc/systemd/resolved.conf
2.按i進(jìn)入插入模式，修改為例如DNS=8.8.8.8 223.5.5.5，然后按ESC鍵輸入wq按回車(chē)鍵保存退出vi編輯
3.輸入該命令按回車(chē)鍵：systemctl restart systemd-resolved
4.輸入該命令按回車(chē)鍵：systemctl enable systemd-resolved
5.輸入該命令按回車(chē)鍵：mv /etc/resolv.conf /etc/resolv.conf.bak
6.輸入該命令按回車(chē)鍵：ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf
7.輸入該命令按回車(chē)鍵查看設(shè)置情況，重啟服務(wù)驗(yàn)證：cat /etc/resolv.conf
