With the release of Ubuntu 18.04 Bionic Beaver administrators need to learn new tools for network management, namely iproute and netplan.
iproute has been around for quite a while, so it’s not that new. It’s a replacement of ifconfig and it’s very easy and comfortable once you learn the syntax.
netplan instead is pretty new to me, I never heard about it before. I got to know about it thanks to an excellent What’s new page on DigitalOcean, and I found out my good ol’ /etc/network/interfaces has gone. So what’s now? a YAML configuration file! I’ve never been fond of yaml, but I also admit I never used it consistently, so let’s give it a hope.