“Netplan” is a system to define the configuration for the network connection. Here are two examples: DHCP and fixed IP. The default configuration file is located at /etc/netplan/00-installer-config.yaml
DHCP
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# This is the network config written by 'subiquity'
network:
ethernets:
ens18:
dhcp4: true
version: 2
This is obviously the simplest configuration as the IP address, the gateway and DNS (nameserver) addresses come from the DHCP server.
Fixed IP Address
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# This is the network config written by 'subiquity'
network:
ethernets:
ens18:
addresses:
- 192.168.1.5/24
gateway4: 192.168.1.1
nameservers:
addresses:
- 192.168.1.1
search:
- lan
version: 2
After you have made a change, reboot or apply the settings.
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sudo netplan apply