Setting a Static IP on Ubuntu

Identify your network interface name

ip addr

Look for the active interface, typically named eth0 or ens33.

Edit the netplan configuration file

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

Example configuration

network:
    version: 2
    renderer: networkd
    ethernets:
    eth0:  # Replace with your interface name
        dhcp4: no
        addresses:
            - 192.168.1.100/24  # Replace with your desired static IP
        gateway4: 192.168.1.1  # Replace with your gateway
        nameservers:
            addresses:
                - 8.8.8.8  # Replace with your preferred DNS servers
                - 8.8.4.4

Apply the changes

sudo netplan apply

Verify the static IP

ip addr