Nathieu Trudel-Lapierre has written about a new network configuration tool which will be present in Ubuntu 17.10. The new configuration tool is called Netplan and presents a declarative way for administrators to configure their network connections: "Since Friday, Netplan is now the default in [Ubuntu 17.10] Artful. It is now included in the minimal seed, and thus part of all installs by default (if you find it missing, it's a bug; I encourage you to report and let me know). It's a direct replacement for ifupdown: I'm still working on making ifupdown properly disappear from default installs (you will still be able to install it if you really want to). Netplan is a framework for configuring networks. It allows you to use a fully declarative syntax to describe how you want your network to look, and will take care of writing the configuration files needed for NetworkManager or systemd-networkd, saving you from having to learn the details of both of these configuration formats." This mailing list post includes an example of a Netplan configuration file and more information on the project can be found on Launchpad.