Disable network manager for a particular interface

Question

I would like to disable network manager service for particular interface(s). "/etc/init.d/NetworkManager stop" is not going to serve my purpose since will stop the service. Please let me know how to achieve this. Please suggest commands/code only - I am not interested in graphical configuration. If there is some rpm/patch available already please refer it to me. Can we configure network manager in such a way so that it will not detect any new network card plugged into the system?

Thanks in advance,

Souvik

Answer 1

NetworkManager will not attempt to control a given interface if you set the interface to unmanaged using the nmcli command.

nmcli dev set wlp2s0 managed no

You can verify the interface is no longer managed with the following:

nmcli dev status

Output example:

DEVICE             TYPE      STATE         CONNECTION      
wlp2s0             wifi      unmanaged     --    

Answer 2

Put this in your NetworkManager.conf (usually at /etc/NetworkManager/):

[main]
plugins=keyfile

[keyfile]
unmanaged-devices=mac:xx:xx:xx:xx:xx:xx

of course, adjust the mac address to the device your want to ignore.