[Question] How To Disable Network Manager in Ubuntu 12.10 (Quantal Quetzal) 2

This question came in to our general inbox about disabling Network Manager in Ubuntu. Before I answer it, let me first stress that although we try our best to get to all your email questions, we won’t be able to reach them in time. So we recommend that you post your questions below one or our posts that’s similar to the question being asked. We’ll try to answer as many as we can but please be reminded that we can’t reach all of your questions. So if you don’t see an answer to your question, it may be that we haven’t reached it yet.

Back to the question: How to disable Network Manager in Ubuntu?

Network Manager comes with Ubuntu by default, and it lets you manage and configure network interfaces easily. Unlike the command line where you must type commands and switches to configure network adapters, Network Manager gives you an easy to use GUI to configure, disable, enable network interfaces in Ubuntu. You don’t need to be an Ubuntu guru to configure wireless networks.

It is especially important for new users who want to setup Wi-Fi or wireless networks. However, If you feel comfortable configuring your network interfaces without Network Manager, then more power unto you.

This brief tutorial is going to show you how to disable Network Manager in Ubuntu. If this feature is disabled, you’ll have to configuring your network adapters using the command line or if-scripts.

To get started, press Ctrl – Alt – T on your keyboard to open the terminal. When it opens, run the commands below to open Network Manager config file.

gksu gedit /etc/NetworkManager/NetworkManager.conf




When the file opens, change the value highlighted below to true. The true value enables if scripts to manage your network adapters. That’s how to disable Network Manager in Ubuntu.




Now, since Network Manager is not managing your adapter, you must now configure your interfaces manually. To go that, go to the network interface file by running the commands below

gksu gedit /etc/network/interfaces


Then configure your network adapter. For the first adapter, it will be called eth0. Configure the IP address, Netmask, Broadcast, and Gateway and save.




Restart and enjoy! Ifupdown will be managing your network adapters.



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2 thoughts on “[Question] How To Disable Network Manager in Ubuntu 12.10 (Quantal Quetzal)

  • Jamelle Comfort

    If I disable the Network Manager, but I am using wicd. The documentation on wicd requires me to disable Network Manager; will I still need to configure my wlan0 interface or will this effect the eth interface when I connect with an ethernet cable.

    Appreciate any advise you can provide.


    • Murray


      I have the same issue, trying to work around wifi authencation have added wlan0 to line with IP one place advanced. still not working Ha