123Systems VPS is not working after reinstall

I have reinstalled and I have got the following error for apt-get update:

Err http://ift.tt/A2rwP6 wheezy/updates Release.gpg
Temporary failure resolving 'security.debian.org'
Err http://ftp.debian.org wheezy Release.gpg
Temporary failure resolving 'ftp.debian.org'
Reading package lists... Done
W: Failed to fetch http://ift.tt/WiUGKg Temporary failure resolving 'ftp.debian.org'

W: Failed to fetch http://ift.tt/1uxfqxt Temporary failure resolving 'security.debian.org'

W: Some index files failed to download. They have been ignored, or old ones used instead.
root@szerver:~# apt-get install mc
Reading package lists... Done
Building dependency tree... Done
E: Unable to locate package mc

Support says:

Hello

Please add this entries in /etc/resolve.conf file and try. nameserver 8.8.8.8 nameserver 8.8.4.4

It is not working after edit and server reboot...

http://ift.tt/1dvHQ0Z