Kubuntu intrepid network problem: activated but cannot browse

I am not sure what happened, but suddenly my kubuntu couldn’t connect to internet, while my windows can. It seems that my eth0 is activated, but somehow I couldn’t browse the net. I suspect it’s the DNS problem. So this is what I did and it solves the problem

# route add default gw 10.0.0.2
# cp /etc/resolv.conf /etc/resolv.conf.orig
# echo "nameserver 10.0.0.2">> /etc/resolv.conf

use “sudo” whenever necessary. In my case 10.0.0.2 is the gateway and the router. Now I’m back online. yay!

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