Networking keeps stopping

[Jonathan M. Prigot]

OK, try de-installing knetworkmanager and see if that does it.
-- 
Jonathan M. Prigot <jprigot at verizon.net>

On Wed, 2011-04-27 at 16:18 -0600, Homer wrote:
> On Wed, Apr 27, 2011 at 2:48 PM, Jonathan M. Prigot <jprigot at verizon.net> wrote:
> > Yup. The usual entries are for NAMESERVER, DOMAIN, and optionally
> > SEARCH. As to Ubuntu not using it anymore, you've seen what happens if
> > that information is not there. As to where the contents of resolv.conf
> > has gone (3 times), that's the mystery we are trying to solve, isn't it?
> 
> Four times now.  Uggg.  Heading home in a sec, so will have to pick it
> up tomorrow.  Thank you for the comments/insight on this.
> 
> 
> > On Wed, 2011-04-27 at 14:35 -0600, Homer wrote:
> >> On Wed, Apr 27, 2011 at 11:31 AM, Jonathan M. Prigot
> >> <jprigot at verizon.net> wrote:
> >> > Well KNetworkManager is just the front end to NetworkManager. I've
> >> > always "apt-get removed" on my systems that need full manual control of
> >> > the network.
> >>
> >> I'll consider doing that.  I was just reviewing your previous
> >> responses.  Is it correct to say that resolv.conf should contain the
> >> dns and domain information?  I thought I had read way back that ubuntu
> >> no longer used that file.  If it should be populated with that info,
> >> then it is curious that it has been deleted three times.  We know I
> >> don't have DHCP running, so what else would delete the contents of
> >> that file?
> >>
> >>
> >> > On Wed, 2011-04-27 at 11:24 -0600, Homer wrote:
> >> >> On Wed, Apr 27, 2011 at 10:52 AM, Jonathan M. Prigot
> >> >> <jprigot at verizon.net> wrote:
> >> >> > Best indication would be "ps -ef|grep dh". If anything but your "grep"
> >> >> > command comes up, then you are running a DHCP client. Not sure if this
> >> >> > applies, but NetworkManager often sneaks this.
> >> >>
> >> >> No DHCP is running.  I took a look at Network Connections under System
> >> >> Settings.  Nothing is configured there.  What about KNetworkManager?
> >> >> "ps -ef|grep net" indicates it is running.  Is that something I can
> >> >> configure?  If I select it from the K menu, nothing happens.
> >> >>
> >> >>
> >> >>
> >> >>
> >> >> > On Wed, 2011-04-27 at 10:38 -0600, Homer wrote:
> >> >> >> On Wed, Apr 27, 2011 at 10:23 AM, Jonathan M. Prigot
> >> >> >> <jprigot at verizon.net> wrote:
> >> >> >> > My guess is that you are using DHCP on your network. The DHCP server is
> >> >> >> > responsible for supplying the entries in /etc/resolv.conf. Someone at
> >> >> >> > the server end probably deleted those entries. As you see, you can
> >> >> >> > manually edit the /etc/resolv.conf file, but when the DHCP client on
> >> >> >> > your machine refreshes, they disappear.
> >> >> >>
> >> >> >> Good guess, but my machine has always had a static IP.  We are moving
> >> >> >> to DHCP here, but I've been a hold out for a number of reasons.  Might
> >> >> >> I have DHCP running on my machine I don't know about?  I always
> >> >> >> configure my network info by editing the /etc/network/interfaces file,
> >> >> >> and that has always worked.
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> > On Wed, 2011-04-27 at 10:07 -0600, Homer wrote:
> >> >> >> >> Kubuntu 10.04
> >> >> >> >>
> >> >> >> >> Yesterday the networking on my machine stopped working.  I figured it
> >> >> >> >> was something in the building as I didn't make any changes on my
> >> >> >> >> computer that preceded the stoppage.  Ultimately the IT folks here
> >> >> >> >> concluded the problem was I didn't have any entries in my
> >> >> >> >> /etc/resolv.conf file.  They added the nameservers and dns-search,
> >> >> >> >> which got things going, and my machine was declared fixed.  I was
> >> >> >> >> dubious.
> >> >> >> >>
> >> >> >> >> This morning networking stopped again.  A quick check of the
> >> >> >> >> resolv.conf file showed it again to be empty.  I made the changes and
> >> >> >> >> restarted networking and was off again.  Then it stopped again 30
> >> >> >> >> minutes later.  resolv.conf was again empty.  I repeated the above
> >> >> >> >> steps, and am posting here before it quits again.
> >> >> >> >>
> >> >> >> >> Anyone have any idea what is really going on?  I'm stumped, but that's
> >> >> >> >> not hard to do.  I updated my machine the day prior to the first
> >> >> >> >> stoppage.  No other OS fiddling.
> >> >> >> >>
> >> >> >> >
> >> >> >> >
> >> >> >> > --
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> >> >> >>
> >> >> >
> >> >> >
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