How to disable network manager Red Hat 6 based distributions (RHEL, CentOS, Oracle Linux)

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To stop Network Manger ( for example then using pacemaker cluster) execute as root:
# service NetworkManager stop
To prevent Network Manager Service from starting at boot execute as root:
# chkconfig NetworkManager off

Keep in mind that you now need to manually configure your network interfaces.

Provided by:Forthscale systems, cloud experts

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