[SOLVED]internet not working!!

[Mihai Andrei]

root@raspberry-pi:~# apt-get update
Err http://archive.raspbian.org wheezy Release.gpg
Could not resolve 'archive.raspbian.org'
Err http://archive.raspberrypi.org wheezy Release.gpg
Could not resolve 'archive.raspberrypi.org'
Err http://apt.openlighting.org wheezy Release.gpg
Could not resolve 'apt.openlighting.org'
Reading package lists... Done
W: Failed to fetch http://archive.raspbian.org/raspbian/di ... elease.gpg Could not resolve 'archive.raspbian.org'

W: Failed to fetch http://apt.openlighting.org/raspbian/di ... elease.gpg Could not resolve 'apt.openlighting.org'

W: Failed to fetch http://archive.raspberrypi.org/debian/d ... elease.gpg Could not resolve 'archive.raspberrypi.org'

W: Some index files failed to download. They have been ignored, or old ones used instead.

[Mihai Andrei]

edit /etc/resolv.conf
default : nameserver 127.0.1.1
edit : nameserver 192.168.0.1(my router)