How to set a fixed IP address on Ubuntu 22.04 system.

To set a fixed IP address on Ubuntu 22.04, you can follow the steps below:

1. Open the terminal and edit the network configuration file with administrator privileges:

   sudo nano /etc/netplan/00-installer-config.yaml

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2. In the file, you will see a configuration similar to:

   network:
     ethernets:
       enp0s3:
         dhcp4: true
     version: 2

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3. Will
   dhcp4: true modified to
   dhcp4: no, to disable DHCP and enable manual configuration.

4. Add static IP address configuration, for example:

   network:
     ethernets:
       enp0s3:
         addresses: [192.168.0.100/24]
         gateway4: 192.168.0.1
         nameservers:
           addresses: [8.8.8.8, 8.8.4.4]
     version: 2

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   Replace
   enp0s3 with your network interface name. Specify the fixed IP address, subnet mask, gateway and DNS server address you want to use.

5. Save changes and close file.

6. Apply new network configuration:

   sudo netplan apply

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7. Restart network service:

   sudo systemctl restart systemd-networkd

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After completing the above steps, your Ubuntu 22.04 system will use the fixed IP address you specified for network connection. Please ensure that the selected IP address does not conflict with other devices on the network and is configured appropriately according to your network environment.

Please note that depending on the Ubuntu version and network management tool you are using, the location and naming of the network configuration file may change, and corresponding adjustments may be required.

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