My laptop connects to LAN and/or WLAN.
Connections on the local network seem to be OK when checking my DSL router
and I can connect to the other computers.
But when using the browser to connect to internet, I do not receive any data.
Also Yast update can not make any connection to the repos.
I run OpenSuse 12.3. with KDE 4.10.5
Tried to connect using ifup instead of Networkmanager, but no results!
Any idea’s or suggestions for this problem?
Thanks for your help,
Ellio
To send packages outside yopur LAN, the system needs routing information. On a home LAN there is often only one routing important: the default route. That should point to your router. So check what the routing is:
netstat -rn
Also you seem to have tested only with some end-user programs where most people use host/domainnames and not IP addresses. In that case your DNS service must function. So try:
host forums.opensuse.org
It should give you the IP address(es) as an answer.
I see the following with the commands
netstat -rn
me@traveltop:~> netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 192.168.178.1 0.0.0.0 UG 0 0 0 eth0
192.168.178.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
Also you seem to have tested only with some end-user programs where most people use host/domainnames and not IP addresses. In that case your DNS service must function. So try:
host forums.opensuse.org
It should give you the IP address(es) as an answer.[/QUOTE]
me@traveltop:~> host forums.opensuse.org
;; connection timed out; no servers could be reached
Everything worked fine since the last time using my laptop when I did a update via yast
So this is confusing
regards,
Ellio
Please, please, use CODE tags around your computer text as I did. It is the # button in the tool bar of the post editor.
Your routing seems to be OK. The default route (0.0.0.0) points to 192.168.178.1 which is most probably your modem/router.
But your DNS server seems to be unavailable. Normaly it is configured by DHCP (like your IP address and your default route).
Please check the configuration:
cat /etc/resolv.conf
Oops, I will use the code. I forgot because I had to copy it into a text file and transfer it to my Windows PC from where I logged in to the forum.
This is what results:
me@traveltop:~> cat /etc/resolve.conf
nameserver 213.230.130.222
nameserver 213.230.155.94
Those do not seem to work properly. Also the comment lines are missing from the file, whichh culd point to some manual instead of DHCP configuration.
Can you check if using Google’s DNS server works for you?
Change the file to:
nameserver 8.8.8.8
#nameserver 213.230.130.222
#nameserver 213.230.155.94
Problem solved!!
Since it looked strange to me that the router’s gateway is not listed
I checked the files /etc/resolv.conf.homesettings and /etc/resolv.conf.netconfig.bak I noticed in /etc
These listed the lines I added to resolv.conf. After that I could browse again:shame:
Also noticed the file /etc/resolv.conf.prev which contained the line ;backuped by Mobile Connect Manager
followed by the two nameservers that were listed in resolv.conf
It must have happened when I used my laptop with a mobile broadband modem connection.
Obviously the dongle configuration caused this change to resolv.conf when I had the phone company
to restore the connection that was terminated before the contract period I paid for was ended.
After they had reset things I simply could connect to their service.
How it happened to overwrite resolv.conf is a mistery to me
Anyway, this is what is in my resolv.conf file
me@traveltop:~> cat /etc/resolve.conf
search fritz.box
nameserver 192.168.178.1
nameserver 213.230.130.222
nameserver 213.230.155.94
Thanks for your help,
Regards,
Ellio
Well I did not manually change the file and if so, I would leave the comment lines.
The USB dongle I used in Italy contains software that either installs the connection software on windows or
can be connected as a modem on linux.
But who changed resolv.conf ?? Could KDE’s networkmanager have caused this?
I do not know who did it 
But mine starts withh:
### /etc/resolv.conf file autogenerated by netconfig!
#
# Before you change this file manually, consider to define the
# static DNS configuration using the following variables in the
# /etc/sysconfig/network/config file:
# NETCONFIG_DNS_STATIC_SEARCHLIST
# NETCONFIG_DNS_STATIC_SERVERS
# NETCONFIG_DNS_FORWARDER
# or disable DNS configuration updates via netconfig by setting:
# NETCONFIG_DNS_POLICY=''
#
# See also the netconfig(8) manual page and other documentation.
#
# Note: Manual change of this file disables netconfig too, but
# may get lost when this file contains comments or empty lines
# only, the netconfig settings are same with settings in this
# file and in case of a "netconfig update -f" call.
#
### Please remove (at least) this line when you modify the file!
When this (specialy the last line) is there, DHCP will put it’s servers in there, replacing what servers are there already. When not, then it assumes that you have your own prefered configuration and thus will not change it.