Yes, indeed you can.
To do this, we use a command line utility (which should be already installed) for network manager called
you need to run the following command:
nmcli dev disconnect iface eth0
Note: You need to make sure that the iface value for the connection is
eth0, you can do so by taking a look at the status of all the devices:
nmcli dev status
Note that, in this case,
eth0 is connected, hence the iface value is
To connect again
you need to know the
uuid of the connection. Run the following command:
and note the
uuid of your connection.
Then, to connect to that connection, run
nmcli con up uuid <uuid>
<uuid> is the uuid you noted from the previous command.