On Thu, Mar 17, 2011 at 8:41 PM, Matthew Dawson <matthe...@gmail.com> wrote:

> Hello,
>
> > >> my /etc/network/interfaces file contains
> > >
> > > # 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
> > > auto eth0
> > > iface eth0 inet dhcp
> > >
> > >
> > > i dont know wht this dhcp is bt I havnt used this earlier and I am
> under my
> > institute's(nitrkl.ac.in) firewall
> > and at the installation time it automatically configured my laptop as
> > phani.nitrkl.ac.in (I doubt this)
> > Is my institute firewall making problem?
> > As far as I know my institute supports  automatic DHCP configuration
> As mentioned before, you should comment out the lines about eth0.  So your
> /etc/network/interfaces file should contain afterwards:
>
> this is working I thought I shd uncomment sorry and thanx

>  # 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
> #auto eth0
> #iface eth0 inet dhcp
>
>
>
> Afterwards run the command:
> /etc/init.d/network-manager restart
>
> And see if that works.
>
> For others who come looking for a solution, the problem is network manager
> (the tool gnome uses to allow users to easily configure their network
> settings) ignores any interface you explicitly configure in
> /etc/network/interfaces.  By commenting out the lines and restarting the
> service, network manager will begin managing eth0.  This also applies if you
> use any other desktop environment which uses network manager as its backend.
>
> Matthew
>
>
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