The nmcli tool helps us create and edit connection profiles.
Connection profiles can be "attached" to interfaces through the network manager.

To display the connections on a system and the devices they are attached to, we use the below command:


To modify the "Wired connection 1" connection, we first we turn it off using the below command:


We then edit our connection using the below command:


To see the details of the connection, we use:


We can change the connection id to "static connection" using the below command:


The field "connection.interface-name" indicates to the Network manager the interface to which the changes will apply.

We can see the IPv4 setting using the below command:


We will need to change it to "manual" to tell the system that we will be providing an internet address manually:


Then we set the gateway IP address and the DNS using the below commands:


We then save the changes, using the below:


And we exit using the below:


Now, we can bring our connection back up using the command:


We can check the changes using the command:


To check if our gateway and DNS are working, we could ping an external address as below:

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