First Check if NetworkManager is running on Ubuntu / Debian
Usually you should be using NetworkManager by default (Ubuntu 14.04), just in case you want to be sure, use this command to verify:
dpkg --get-selections | grep network-manager
In case there is some output like:
it is installed, if there is nothing returned, you are probably using a different network managing daemon. It would be possible that network manager is installed but inactive. Lets check if its running the hard way:
ps aux | grep network-manager
If thats returning something different than itself, you can be sure using the NetworkManager in Ubuntu / Debian.
Disable Network Manager Completely
Here is how to disable Network Manager completely, so that Network Manager stops running on your Linux system.
To disable Network Manager on Debian 8 or later:
$ sudo systemctl stop NetworkManager.service $ sudo systemctl disable NetworkManager.service
To disable Network Manager on Debian 7 or earlier:
$ sudo /etc/init.d/network-manager stop $ sudo update-rc.d network-manager remove
To disable Network Manager on Ubuntu or Linux Mint: Continue reading “How to disable Network Manager on Linux” »