Restart network service in RedHat, CentOS, Fedora
Below are two ways to restart your network service in RedHat, CentOS and Fedora:
[root@localhost user]# service network restart
[root@localhost user]# /etc/init.d/network restart
Both methods require root access. So you will need to be ROOT or type the command “sudo” in front of the command.
If your network service shows “FAILED” then your configuration or the network driver has issues. Verify that you have the correct driver loaded and the network card is working.