Re: deactivating network connexion using NetworkManager
On Mon, 18 Jan 2010 11:23:07 +0100, Bernard wrote:
> Hi to Everyone,
>
> A few weeks ago, I have decided that, whenever my PC was to stay on for
> awhile without being used, I would disconnect the internet connexion,
> using the Gnome "Network Manager" for this purpose (right click then
> uncheck "activate the network"). Today, I wonder how efficient that is,
> in regard to security risks, since it seems likely that the Internet
> link must still be up, if it was not the case, how to explain that the
> re-activating process is so quick ?
Maybe because the interface is configured as "hotplug" and as soon as the
"link" is detected the card gets up and running :-?
"cat /etc/network/interfaces" will tell.
> Maybe it is better to physically disconnect the Ethernet wire at the
> back on the main board... which is not always an easy operation,
> depending on one's setup.
I would use the old method (ifup/ifdown) to manage the network interface
(I find it most reliable than NM), at least for wired devices. So in the
event you want to shutdown a specific interface, you can just run "ifdown
eth0".
While using NM, to shutdown the entire newtork service you can issue the
command "/etc/init.d/network-manager stop" but that seems a bit drastic
measure. I wonder if it could be possible to shutdown just one network
adapter instead the whole service :-?
Greetings,
--
Camaleón
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