Bernard, 5.03.2012: > Tom H wrote: > >On Sun, Mar 4, 2012 at 8:43 AM, Bernard <bdebr...@teaser.fr> wrote: > >>Selim T. Erdogan wrote: > >>>Andrei POPESCU, 3.03.2012: > >>>>On Sb, 03 mar 12, 20:59:30, Bernard wrote: > >>>>>Thanks in advance for your help with the 'NetworkManager' or any > >>>>>other convenient tool that would operate on Squeeze so as to easily > >>>>>turn an Internet connexion ON and OFF > >>>>Make sure you have NO definition for eth0 in /etc/network/interfaces and > >>>>that you have: > >>>> > >>>>[ifupdown] > >>>>managed=false > >>>> > >>>>in /etc/NetworkManager/NetworkManager.conf > >>>> > >>>>If it still doesn't work after a restart[1] please attach both files. > >>>> > >>>>[1] not sure why, but in some cases new configurations did not work > >>>>properly until a full restart > >>>Or you can keep /etc/network/interfaces as you have it now and edit > >>>/etc/NetworkManager/NetworkManager.conf to have > >>> > >>>[main] > >>>plugins=ifupdown,keyfile > >>> > >>>[ifupdown] > >>>managed=true > >>> > >>>(And you have to restart Network Manager.) > >>I just tested both ways, to no avail. > >> > >>At first, I must say that my system did not have any > >> > >>NetworkManager.conf file in /etc/NetworkManager/ > >> > >>The only NetworkManager.conf file that could be found on this system was in > >> > >>/etc/dbus-1/system.d/ > >> > >>I can see the same thing on this other machine still on Lenny, where I am > >>writing this from: no /etc/NetworkManager/NetworkManager.conf file either. > >> > >>the man page for NetworkManager does not mention any such conf file. I did > >>not dare modifying /etc/dbus-1/system.d/NetworkManager.conf > >> > >>But I tested creating an /etc/NetworkManager/NetworkManager.conf, with only > >>**************************** > >> > >>[main] > >>plugins=ifupdown,keyfile > >> > >>[ifupdown] > >>managed=false > >>****************************** > >> > >>As a first trial, I had just written: > >> > >>*********************** > >>[ifupdown] > >>managed=false > >>************************* > >> > >>in it. But maybe I should have modified permissions and owner ? Owner was > >>root and perms: -rw-r--r-- > >> > >>Besides, my /etc/network/interfaces file did not contain any definition for > >>eth0. Still, I tested removing any mention of eth0, to no avail. > >> > >>Below is my 'etc/network/interfaces' file : > >> > >>************************************* > >> > >># This file describes the network interfaces available on your system > >># and how to activate them. For more information, see interfaces(5). > >> > >># The loopback network interface > >>auto lo > >>iface lo inet loopback > >> > >># The primary network interface > >>allow-hotplug eth0 > >>iface eth0 inet dhcp > >> > >>********************************************* > > > >The file in "/etc/dbus-1/system.d/" is useful (to systems) if you have > >systemd installed. > > > >Do you have network access? > > > >With your current setup, "managed=false" and eth0 defined in > >"/etc/network/interfaces" you can control eth0 with ifup and if down. > > > >With "managed=true", you'd have to use NM to bring up or take down eth0. > > > > > I just don't understand what happens. Whatever I try with > 'NetworkManager'... FAILS ! Besides, as previously stated, I have > tried to install 'wicd'... It did install all right, and worked as > far as disconnecting was concerned, but no way to reconnect except > on a re-boot. Now that I wish to get rid of 'wicd', just in case it > would interfer with 'NetworkManager', I can't get rid of it ! > > #apt-get remove wicd > > did remove it, so it said... if I try to remove it again, it says > that it is no longer there... however, I can still see 'wicd network > manager' on my gnome desktop, and, if I launch it, it still > disconnects my Internet link, and is still unable to reconnect it !
There may be other wicd-related packages still installed. Try dpkg --get-selections wicd* > Now, if I try > > #ifup and #ifdown eth0, it seems to work... I repeat: it "SEEMS TO > WORK" but it does not REALLY work !! Here is what I see: > > #ifup eth0 > > .......... > ....... > receive packet failed on eth0: Network is down > .................................. > DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6 > DHCPOFFER from 192.168.1.1 > DHCPREQUEST on eth0............... > DHCPACK form 192.168.1.1 > SIOCADDRT: File exists > bound to 192.168.1.15 -- renewal in 40322 seconds. > # > > at this point, if I start again the command: > > #ifup eth0 > > I get this: > > ifup: interface eth0 already configured (which I agree was expected > as normal !) > > ifdown disconfigure eth0 ; ifup reconfigures it... Except that, > whether it is configured or disconfigured, the network (the Internet > network) is up and running, as if it did not care whether ifup had > it configured or not ! (I must state that I have no wireless > connexion on this machine, just one wired ethernet connexion, no > more). > > Ooh... Well... let me see... I just finished testing something... As > previously stated, 'wicd' only works in the purpose of disconnecting > ; it never reconnects ; it does that job even though I have > supposedly removed it... I just tested disconnecting with wicd... > and now that it is really disconnected, I can REALLY reconnect with > '#ifup eth0' and REALLY disconnect using '#ifdown eth0', back and > forth as many times as I wish... provided that I have first > disconnected - using 'wicd' - the connexion that occured > automatically upon boot ! > > I hope that these symptoms might help someone to understand what is > wrong with my settings.. Sounds like when you turn off wicd, then ifup and ifdown work the way you want them to. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120305103701.ga12...@cs.utexas.edu
