Linux Networking: netplan DHCP Configuration on Ubuntu

Netplan DHCP explanation

DHCP (Dynamic Host Configuration Protocol) is used in Netplan configurations on Ubuntu when you want the network interface to automatically receive its IP address, subnet mask, default gateway, and DNS servers from a DHCP server. This is common in environments where network settings are centrally managed and can change dynamically.

Configuration

Configuration file is located under the folder: /etc/netplan

# List files in the folder
ls /etc/netplan

# Edit the file
sudo nano 00-installer-config.yaml

network:
  version: 2
  renderer: networkd
  ethernets:
    enp0s3:
      dhcp4: yes

Test and Apply configuration

# Try the configuration before applying
netplan try -timeout 120 

# Apply network configuration
netplan apply

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