이슈
https://askubuntu.com/questions/1155478/ubuntu-desktop-gnome-no-internet-connection-on-19-04
NetworkManager and netplan
https://askubuntu.com/questions/1122757/netplan-vs-networkmanager-on-ubuntu-18-04-and-above
https://ubuntu.com/core/docs/networkmanager/networkmanager-and-netplan#:~:text=The%20default%20netplan%20configuration%20files,taking%20control%20of%20all%20devices.
내가 볼려고 만든 블로그