DNS Problem

English Network/Internet
1

Hi Everybody.

I think, I have a problem that is related to dns. Because I can use skype without problem but when I open firefox and try to open a webpage, I get “Server not found” message.

I tried this command.

service nscd restart.

it didn’t work.
I looked the status by nscd.

service nscd status

Result


nscd.service - Name Service Cache Daemon 
   Loaded: loaded (/usr/lib/systemd/system/nscd.service; enabled) 
   Active: active (running) since Thu 2015-03-19 21:17:56 EET; 2min 20s ago 
  Process: 716 ExecStart=/usr/sbin/nscd (code=exited, status=0/SUCCESS) 
 Main PID: 720 (nscd) 
   CGroup: /system.slice/nscd.service 
           `-720 /usr/sbin/nscd 
 
Mar 19 21:17:56 linux-jwrl-trz nscd[720]: 720 cannot create /var/run/nscd/passwd; no persistent database used 
Mar 19 21:17:56 linux-jwrl-trz nscd[720]: 720 cannot create /var/run/nscd/group; no persistent database used 
Mar 19 21:17:56 linux-jwrl-trz nscd[720]: 720 cannot create /var/run/nscd/services; no persistent database used 
Mar 19 21:17:56 linux-jwrl-trz nscd[720]: 720 cannot create /var/run/nscd/netgroup; no persistent database used

History before the problem.

I updated opensuse.
I updated virtualbox and I entered “virtualbox /etc/init.d/vboxdrv setup” command.
Problem started after reboot
I updated opensuse 13.1 to 13.2.
Problem is continuing to exist.

Now my system.

Opensuse 13.2 64 bit
I used KDE

2

Please post the output of the following command, encase it in CODE tags:
**
cat /etc/resolv.conf**

Like this!
3 
### /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!
4

This is containing only comment, but no real DNS server definition.

Are you suing DHCP? It should fill in that statement.

You can insert the line

nameserver 8.8.8.8

That is a DNS server of Google and will resolve your problem.

But nevertheless, you may want to find out why there is nothing there at the moment.

5

Thank you

It works now. But how can I find out the reason? Is it important for security?

6

In order to find out, you should in any case start answering questions. I asked:
Are yo using DHCP?

And the next question is: Traditional (ifup/wicked) or NetworkManager?