NETWORKING /etc/resolv.conf/ Ubuntu 10.0.4

[zongo saiba]

On Fri, 2010-05-14 at 20:49 -0400, Tom H wrote:
> On Fri, May 14, 2010 at 7:54 PM, Asif Iqbal <vadud3 at gmail.com> wrote:
> > On Fri, May 14, 2010 at 3:32 PM, zongo saiba <zongosaiba at gmail.com> wrote:
> >> Hi,
> >>
> >> Could anyone tell me why my /etc/resolv.conf/ file gets emptied and then
> >> I lose all connections to my wireless network ? I mean, I have figured
> >> out why this was happening. I have to manually reconfigure manually
> >> resolv.conf everytime this happens and all his back to normal.
> >>
> >> resolv.conf is controlled by NetworkManager. Should I configure
> >> NetworkManager in any particular way ? Or May by my routeur ?
> >
> > if you are getting ip through dhcp then just use prepend or append
> > your resolvers
> > in your system.
> >
> > man dhclient.conf or vi /etc/dhcp3/dhclient.conf to get some idea.
> 
> If using NM, it is probably more appropriate to make configuration
> changes within NM's GUI. I don't have NM installed to check this, but
> it must have a field for specifying DNS servers.
> 

Indeed it does. I was suffering network connection loss eventhough I had
configured the GUI properly. Plus the Wifi connection or card (still
don't know) was very talkative and was filling up my logs pretty fast.
Plus, my resolv.conf was being whipped clean every other time which had
for result to cut off my connection from the router. Since I have
configured (as off today) dhclient.conf (as per man page) it seems to be
a lot better. I have just tested the connection today only, but will
come back on that in a couple of days with better estimate of the
reliability of my connection. An interesting fact here: Before actually
changing the dhclient.conf file, I had changed the configuration
in /etc/network/interfaces which had a terrible effect on my wifi
connection but also on NM. NM was still running in the background but
not showing in the menu bar at all. I could not scan wireless networks.
I could only connect with ifconfig and ESSID of the network which worked
nicely but still needed my notebook to scan for other wireless networks
especially when I was on the move. Nevertheless, it seems that I slowly
getting back to normal with my wifi connection. 

Kind Regards, 

zongo