Forcing static address in 12.04

rikona rikona at
Fri Jun 12 22:42:48 UTC 2015

Hello Karl,

Wednesday, June 10, 2015, 10:27:47 PM, Karl wrote:

> On Wed, 2015-06-10 at 22:02 -0700, rikona wrote:
>> (1) the GUI from 'system'network' now lists a wired connection
>> [not there before] but it is labeled 'Unmanaged' and no way to make
>> changes with that GUI.

> Shut down eth0 ("sduo ifdown eth0"), comment out anything
> in /etc/network/interfaces that has to do with eth0, restart NM ("sudo
> restart network-manager"), and NM will be able to manage the interface
> again.

>> (2) there is now a wireless-looking small icon top right of screen [not
>> like the original icon]. 'wired network' is grayed out. 'connection
>> info' gives err msg "no valid active connections found". 'edit
>> connections' box does come up, listing a wired connection that was
>> supposedly used 4 days ago, even though it was used just minutes ago. 

> It was used 4 days ago *by Network manager*. "Wired network" will stay
> grayed out as long as NM is not managing that interface, see above.

>> start: Job is already running: network-manager

> Yes. The icon at the top is nm-applet. When you have a wireless
> connection that icon changes to a wifi icon (concentric arcs); when you
> have a wired connection it changes to contraindicating vertical arrows.

Thanks for the explanations!



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