[olug] Ethernet connection
Dan Linder
dan at linder.org
Thu Apr 22 15:06:38 UTC 2010
Another test you can do is to boot from a LiveCD (preferably the one you
installed from) and confirm that it can still connect to your home network.
(I seriously doubt this will fail, but it's worth a try.)
Dan
On Thu, Apr 22, 2010 at 09:29, <jonsteckelberg at cox.net> wrote:
> Thanks for all the replies.
> I should give some more info.
> I am new to linux (about 6 months) and not an IT person just a Linux fan,
> so any instructions need to be simple and detailed.
> Another thing, This is a new build on a new hard drive I installed in the
> x31.
> The first time I booted up I was connected to my home wired network.
>
> T. J. Brumfield You sent your phone number, can I call you sometime when I
> am at home to help walk me through the problem?
> I work 8-5.
>
> Jon Larsen, I always shut down when a go from work to home.
>
> Thanks
> Jon Steckelberg
>
> ---- Jon Larsen <relayer at levania.org> wrote:
> > By chance, are you putting your laptop to sleep when you leave work?
> >
> > If so, trying turning it off at work, then power it on at home and see if
> > you have the same results with NetworkManager.
> >
> > On Wed, 21 Apr 2010, T. J. Brumfield wrote:
> >
> > > Date: Wed, 21 Apr 2010 10:57:24 -0500
> > > From: T. J. Brumfield <enderandrew at gmail.com>
> > > Reply-To: Omaha Linux User Group <olug at olug.org>
> > > To: "Rob.Townley at gmail.com" <Rob.Townley at gmail.com>,
> > > Omaha Linux User Group <olug at olug.org>
> > > Subject: Re: [olug] Ethernet connection
> > >
> > > That is all very good advise except I'll throw in that I think
> > > openSUSE ships with dhcpcd instead of dhclient. I could be mistaken
> > > though.
> > >
> > > Sent from my iPhone
> > >
> > > On Apr 21, 2010, at 10:45 AM, Rob Townley <rob.townley at gmail.com>
> wrote:
> > >
> > > > On Wed, Apr 21, 2010 at 9:16 AM, T. J. Brumfield <
> enderandrew at gmail.com
> > > > > wrote:
> > > >> Welcome to the list!
> > > >>
> > > >> What I've seen happen from time to time is that when you take a
> > > >> computer
> > > >> from one environment to the next, Networkmanager doesn't always
> > > >> correctly
> > > >> set /etc/resolv.conf which has the DNS settings.
> > > >>
> > > >> You can open up a console and try ifconfig to see your NIC
> > > >> settings. You can
> > > >> then try to ping the ip address of your router/cable modem/whatever
> > > >> at home.
> > > >> You can also try pinging a known ip address like 8.8.8.8 (Google's
> > > >> public
> > > >> DNS server).
> > > >>
> > > >> If you can reach that, your NIC is working, but DNS is not. You may
> > > >> want to
> > > >> look at /etc/resolv.conf
> > > >>
> > > >> There isn't any reason I can imagine that your NIC driver and such
> > > >> works in
> > > >> one environment and not the other.
> > > >>
> > > >> -- T. J. Brumfield
> > > >>
> > > >> On Wed, Apr 21, 2010 at 9:02 AM, <jonsteckelberg at cox.net> wrote:
> > > >>
> > > >>> Greetings,
> > > >>>
> > > >>> This is my first post on this mailing list. I have a problem with
> > > >>> my wired
> > > >>> ethernet connection.
> > > >>> I have a Thinkpad X31 running openSUSE 11.2 KDE. Actually I am
> > > >>> having
> > > >>> problems with both the wireless and the wired connection but I
> > > >>> want to focus
> > > >>> on the wired at the moment. The problem is that when I connect to
> > > >>> the wired
> > > >>> network at work everything is fine it connects automagically and I
> > > >>> have
> > > >>> internet access but when I plug into my home network it does not
> > > >>> connect.
> > > >>> It seems like it can not find the network address.
> > > >>> More info;
> > > >>> Thinkpad x31
> > > >>> open SUSE 11.2 KDE
> > > >>> knetwork manager
> > > >>> Home: Cox internet
> > > >>> Router: Netgear WGR614
> > > >>> other computers on home network that work just fine
> > > >>> 2 PC's runnin Linux Mint
> > > >>> 1 PC runin XP (sorry wifes computer)
> > > >>>
> > > >>> Can anyone provide me some assistance?
> > > >>> If you need more info to help solve problem let me know.
> > > >>>
> > > >>> Thanks
> > > >>> Jon Steckelberg
> > > >>> _______________________________________________
> > > >>> OLUG mailing list
> > > >>> OLUG at olug.org
> > > >>> https://lists.olug.org/mailman/listinfo/olug
> > > >>>
> > > >> _______________________________________________
> > > >> OLUG mailing list
> > > >> OLUG at olug.org
> > > >> https://lists.olug.org/mailman/listinfo/olug
> > > >>
> > > >
> > > > Worse would be when the dhclient part of NetworkManager misses
> > > > something else besides DNS such as the default gateway. Can you ping
> > > > other hosts on your lan, but not get out of the lan.
> > > >
> > > > #cat /etc/resolv.conf
> > > > #ifconfig -a
> > > > #ip address
> > > > #route
> > > > #ip route show
> > > >
> > > > Compare IP subnet and default gateway to a working machine.
> > > > If it is different, force the dhcp client to renew:
> > > > #dhclient eth0
> > > >
> > > > Stop all networking and restart
> > > > #/etc/init.d/NetworkManager stop
> > > > #/etc/init.d/network stop (i am assuming this is on suse)
> > > > #/etc/init.d/netplug stop (you may not have this running which is
> > > > ok)
> > > >
> > > > Change stop to start above.
> > > >
> > > > If dhclient / NetworkManager still isn't giving you the right
> numbers,
> > > > then it is worth to hunt down any old dhclient related *.lease files
> > > > on your system. Especially, if at one time, the dhcp server was set
> > > > to hand out leases for a very long time. On a Fedora 11 system, dhcp
> > > > lease files are stored in /var/lib/dhclient/, so do a #find / -name
> > > > dhc. Normally, it does not hurt to erase all these files but you may
> > > > want to mv them somewhere under /tmp/oldleases/ in case work does
> > > > something like TLS 802.1x. You might notice that your home network
> > > > lease has old values for option routers, ns, domain-name, but it has
> > > > not expired yet.
> > > >
> > > > cat /var/lib/dhclient/dhclient-long-ugly-GUID-wlan0.lease
> > > > lease {
> > > > interface "wlan0";
> > > > fixed-address 192.168.168.230;
> > > > option subnet-mask 255.255.255.0;
> > > > option dhcp-lease-time 86400;
> > > > option routers 192.168.168.1;
> > > > option dhcp-message-type 5;
> > > > option dhcp-server-identifier 192.168.168.1;
> > > > option domain-name-servers 192.168.168.1;
> > > > option dhcp-renewal-time 43200;
> > > > option dhcp-rebinding-time 75600;
> > > > option domain-name "lan";
> > > > renew 5 2009/12/25 02:50:46;
> > > > rebind 5 2009/12/25 13:47:45;
> > > > expire 5 2009/12/25 16:47:45;
> > > > }
> > > >
> > > > Once these are cleared out, you will probably never have a problem
> > > > again.
> > > >
> > > > If your stuck at home, give me a call 402-522-6266. i promise i
> don't
> > > > usually talk as much as i write, but i had a compulsion to do a brain
> > > > dump....just now.
> > > > _______________________________________________
> > > > OLUG mailing list
> > > > OLUG at olug.org
> > > > https://lists.olug.org/mailman/listinfo/olug
> > > _______________________________________________
> > > OLUG mailing list
> > > OLUG at olug.org
> > > https://lists.olug.org/mailman/listinfo/olug
> > >
> >
> > --
> > Jon H. Larsen - relayer -at- levania -dot- org
> > Blog - http://levania.org/relayer/
> > VP of Community Development, Omaha Linux Users Group -
> http://www.olug.org/
> > AnimeSunday.org - http://www.animesunday.org/
> > _______________________________________________
> > OLUG mailing list
> > OLUG at olug.org
> > https://lists.olug.org/mailman/listinfo/olug
>
> _______________________________________________
> OLUG mailing list
> OLUG at olug.org
> https://lists.olug.org/mailman/listinfo/olug
>
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