Modern computers are equipped to automatically obtain IP addresses and network settings from the configuration servers… In most cases, you’ll not need to manually set your Ubuntu computer network settings… that was way back in the days when static IP addressing was big thing for desktop computers.
Now all you have to do it plug in your network cable and your computer will automatically be assigned the IP addresses and network settings to allow it to communicate across the cable and to the Internet and beyong.
If your environment is not setup to automatically configure your desktop automatically or your desktop isn’t equipped to handle auto IP, then you will have to manually set it yourself… this brief tutorial is going to show students and new users how to manually configure Ubuntu network settings…
This assumes that you already know the correct settings to use. If not, you may need to ask your network administrator or look at the settings of your router or network switch.
When you’re ready, continue below..
To configure Ubuntu network settings manually, go to the system menu and select setting systems as shown in the image below…
Then go and click Network on the left to open the panel.
In the left pane, select the network connection that you want to set up manually. If you plug in to the network with a cable, click Wired, then click the button in the lower right corner of the panel. For a Wi-Fi connection, the button will be located next to the active network.
Click on IPv4 or IPv6 in the left pane and change the Addresses to Manual. Type in the IP Address and Gateway, as well as the appropriate Netmask.
In the DNS section, switch Automatic to OFF. Enter the IP address of a DNS server you want to use. Enter additional DNS server addresses using the + button.
In the Routes section, switch Automatic to OFF. Enter the Address, Netmask, Gateway and Metric for a route you want to use. Enter additional routes using the + button.
Click Apply. If you are not connected to the network, click the system status area on the top bar and connect. Test the network settings by trying to visit a website or look at shared files on the network, for example.
This is how to configure Ubuntu network settings manually