Netplan

wikipedia:netplan (2016) command is used for network configuration in Ubuntu Since Ubuntu 16.04 LTS. netplan is included in netplan.io package and source code is available in GitHub https://github.com/CanonicalLtd/netplan/releases/tag/0.1.

Basic Commands

• netplan try (you can also verity your YAML file before trying it, for example using yq utility)
• netplan generate to validate the configuration is correctly parsed by netplan and written to disk so next boot will be available.
• netplan apply
  • netplan --debug apply
• netplan info
• netplan generate

Config Files

• /etc/netplan/*.yaml (Read Netplan examples: https://netplan.io/examples)

Depending on your Bionic (18.04LTS) installation method, your configuration file will be different:

INSTALL TYPE	RENDERER	FILE
Server ISO	systemd-networkd	/etc/netplan/01-netcfg.yaml
Cloud Image	systemd-networkd	/etc/netplan/50-cloud-init.yaml
Desktop ISO	NetworkManager	/etc/netplan/01-network-manager-all.yaml

Logs

Jul 15 12:22:13 XXXX systemd[25690]: /lib/systemd/system-generators/netplan failed with exit status 1.

Activities

Basic

1. Read Netplan examples: https://netplan.io/examples including Netplan Bonding and DHCP, additional examples
2. Configure your DNS servers in Ubuntu. https://www.techrepublic.com/article/how-to-set-dns-nameservers-in-ubuntu-server-18-04/

Advanced

1. Review netplan source code: https://github.com/CanonicalLtd/netplan

Related terms

• /etc/resolv.conf
• ip
• access-points:
• static.yaml
• virsh net-define

See also

• Netplan: netplan try, netplan apply, examples, networkd
• ip [link, route], ifconfig netstat ss lsof ping ethtool mii-tool arping nmcli(RHEL) route networkctl, netplan, tc

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Original Source: https://en.wikiversity.org/wiki/Ubuntu/netplan