can't connect to Internet - DNS?

Joseph W Joshua joshua at
Mon Nov 12 07:43:13 UTC 2012

-----Original Message-----
From: ubuntu-users-bounces at
[mailto:ubuntu-users-bounces at] On Behalf Of rikona
Sent: Monday, November 12, 2012 10:39 AM
To: Ubuntu user technical support, not for general discussions
Subject: Re: can't connect to Internet - DNS?

Hello Tom,

Sunday, November 11, 2012, 11:10:58 PM, Tom wrote:

> On Mon, Nov 12, 2012 at 12:59 AM, rikona <rikona at> wrote:
>> One of my 10.04 boxes can no longer see the Internet. Just happened - 
>> has been working fine for quite a while. Nothing has been changed or 
>> updated on that box, or the local net, or any other box. It can see 
>> the other boxes on the local net, but not outside. Seems to be a DNS 
>> problem. For some reason resolv.conf [on that box ] no longer has the 
>> 'nameserver' line. If I put the correct line there, save, check it to 
>> make sure it is changed, and reboot, it is again gone. How can I get 
>> it to stay, and/or fix this in perhaps another way? And, why did it 
>> 'just happen'?
>> In checking the net it is suggested to use network manager. I don't 
>> seem to have network manager installed, even though Synaptic seems to 
>> think it is. Do I need that tool to set this correctly?

> What's the output of:

> aptitude search -F "%c %a %M %30p %10t %20v %20V"
> "?or(dnsmasq,network-manager,resolvconf)"

> ps -ef | grep dhc

It's a bunch of stuff, but I can't reply from there, so will send it later.
Thanks very much for the fast reply!!

I've been fiddling with this for a while - I have to get up pre-dawn
tomorrow, and supposedly be quite alert :-), so I need to hit the bed now.



I think you need to set the DNS using the GUI.

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