Linux reset network settings: to default, command line

Here is the command lines to use if you want to reset the network settings on Ubuntu and other Linux distributions. This will allow you to reset the network settings to the default settings.

Ubuntu/Debian

To reset the network settings on Ubuntu/Debian, make use of one of the following commands:

sudo /etc/init.d/networking restartor

After entering the above command, to check the network status, you can use the following command:

sudo systemctl status networking

For the changes to take effect, use this command:

netplan apply

AlmaLinux and Rocky Linux

In AlmaLinux, enter the following command:

systemctl restart NetworkManager

To check the network status, type:

systemctl status NetworkManager

CentOS 6 and CentOS 

In CentOS 6 and 7, use this command in order to to restart the server networking service:

service network restart

After applying the above command, to check the network status, use the following command:

service network status

CentOS 8

In this distribution, use the following command in order to to restart the server networking service:

systemctl restart NetworkManager. service

To check the network status, use the following command:

systemctl status NetworkManager. service