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Old 07-15-2009, 05:44 PM   #1
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Registered: Jul 2009
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Wireless Server Connection DNS problem


I have a problem with my ubuntu 9.04 server, I put my wireless card in my server.
It recognize it and I had configured ip addresses, gateway...
But I cant'/don't know how to configured DNS to connect to internet.

I can ping my router, but I can't ping

I have CN-WF511 wireless card.

I also install OpenSSH server so i can connect to my server via PuTTy, it's working, but still i can only connect to router with my server not to "whole" internet.

Please help!
Old 07-16-2009, 04:26 AM   #2
Registered: Jan 2004
Location: Austin, TEXAS
Distribution: CentOS 6.5
Posts: 211

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Verify that your router will let this computer get its config via DHCP. It sounds like it might be getting refused.

Check /etc/resolv.conf

Here's what mine looks like:

cat /etc/resolv.conf
# Generated by NetworkManager
My router is

It forwards the DNS requests to the DNS servers it has set up within its config.

Another good test to verify connectivity to the outside network is to find the IP address of a computer and try pinging it by IP.


Non-authoritative answer:

root@pirate-chest: ping
PING ( 56(84) bytes of data.
64 bytes from icmp_seq=1 ttl=242 time=50.7 ms
64 bytes from icmp_seq=2 ttl=242 time=46.4 ms
64 bytes from icmp_seq=3 ttl=242 time=44.5 ms
64 bytes from icmp_seq=4 ttl=242 time=46.0 ms
64 bytes from icmp_seq=5 ttl=242 time=46.2 ms
--- ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4017ms
rtt min/avg/max/mdev = 44.579/46.819/50.770/2.087 ms
Obviously, you'll need to do the nslookup on a computer with a valid connection to the internet. Or, you can use the IP for slashdot I've provided above. If that test fails, then you know that not only is DNS broken for your system, your router is refusing traffic from this machine to the outside world.



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