https://netplan.io/
https://netplan.io/design
https://netplan.io/faq
https://netplan.io/examples
https://netplan.io/reference
https://netplan.io/troubleshooting
    https://help.ubuntu.com/community/NetworkManager
    https://wiki.ubuntu.com/DebuggingNetworkManager
    https://manpages.ubuntu.com/manpages/lunar/en/man5/systemd.network.5.html

https://github.com/canonical/netplan

http://manpages.ubuntu.com/manpages/bionic/man5/systemd.network.5.html

https://netplan.readthedocs.io/en/stable/
https://netplan.readthedocs.io/en/stable/netplan-tutorial/
https://netplan.readthedocs.io/en/stable/examples/
https://netplan.readthedocs.io/en/stable/explanation/
    https://netplan.readthedocs.io/en/stable/structure-id/
    https://netplan.readthedocs.io/en/stable/nm-all/
https://netplan.readthedocs.io/en/stable/reference/
https://netplan.readthedocs.io/en/stable/cli/

2019
https://habr.com/ru/post/448400/