1. Open a Terminal:

• Use your preferred terminal emulator.

2. Create a Netplan Configuration File:

• Choose a name like 01-netcfg.yaml

sudo nano /etc/netplan/01-netcfg.yaml

3. Write Netplan Configuration:

• Use YAML syntax to define network settings.

• Example for DHCP on eth0:

network:
  version: 2
  renderer: networkd  # or "NetworkManager" for desktops
  ethernets:
    eth0:
      dhcp4: true

4. Save and Exit:

5. Apply Configuration:

sudo netplan apply

---

7. Choosing the Right Backend:

• For Ubuntu Server:

  • Use networkd:

    • Lightweight and minimalistic.

    • Suitable for server environments.

    • Basic network configuration.

• Use NetworkManager:

  • Feature-rich and user-friendly.

  • Suitable for desktop environments on servers.

  • More advanced network management features.