This document describes how to disable the Network Manager service. The Network Manager service automates the network's settings and disrupts connections to the IP addresses that reside in the ipaliases module.

You must disable the Network Manager service and enable the network.service service before you install cPanel & WHM.

For more information about how to disable the Network Manager service, read RedHat's Disabling Network Manager documentation.

  • cPanel, Inc. does not support the Network Manager service.
  • Exercise extreme caution when you disable the Network Manager. Your server may lose its network services if you do not disable Network Manager correctly.

Disable the Network Manager service

To disable the Network Manager service, perform the following steps:

Perform these steps from the server's console in order to prevent any interruption to network connectivity.

  1. Disable Network Manager with the following commands:

    service NetworkManager stop
    chkconfig NetworkManager off

    systemctl stop NetworkManager.service
    systemctl disable NetworkManager.service

  2. Change to the /etc/sysconfig/network-scripts directory.

  3. Open the ifcfg-eth0 and ifcfg-lo files with your preferred text editor and, if they exist, set the following keys' values:


    If either of these keys does not exist in your ifcfg-eth0 and ifcfg-lo files, do not add it. Instead, proceed to Step 4.

  4. Run the following commands to restart the network:

    chkconfig network on
    service network start

    systemctl enable network.service
    systemctl start network.service 

Additional documentation