Red Hat Bugzilla – Bug 881665
RFE: Provide a simple method to disable networking
Last modified: 2014-02-05 08:22:02 EST
Description of problem: Extracted from bug 815243. Currently with F18 Beta to disable networking completely the superuser needs to disable and stop the NetworkManager and network services and then loop over the network interfaces to make sure networking is really disabled. Compared to earlier Fedoras where "service NetworkManager stop ; service network stop" did the trick this is clumsy given that today it is not atypical to have 4 or 8 or even more NICs on a system. Please provide a simple method for the superuser to disable networking at will. Version-Release number of selected component (if applicable): Fedora 18 Beta Additional info: https://bugzilla.redhat.com/show_bug.cgi?id=815243#c30 https://bugzilla.redhat.com/show_bug.cgi?id=815243#c33
AFAIK the future lies in using only NetworkManager for network configuration. Stopping NetworkManager doesn't clear the interfaces by design. But you can disable networking with NetworkManager using nmcli. (In reply to comment #0) > Compared to earlier Fedoras where "service > NetworkManager stop ; service network stop" did the trick this is clumsy > given that today it is not atypical to have 4 or 8 or even more NICs on a > system. You are right that this was a trick, or hack, not a supported method IMO.
I don't why this is filed against systemd. systemd sets up the loopback interface, but it's not involved in other interfaces.
At the moment functionality to stop NetworkManager does not exist, perhaps we could add a D-Bus command to NM to tell it to quit and actually clear all interface configuration. Like pavel says, NetworkManager is meant to be either disabled or running all the time, and if you're somebody who needs to disable NetworkManager, then you're obviously somebody who knows enough to manually configure interfaces too. Plus, given that this operation would only ever occur once (because after that, NetworkManager would be disabled) it's not a particularly high priority.
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