Debian static IP = no internet

Check for the following file : /etc/network/interfaces

You will need to edit that file and change the configuration for eth0 to something like this :

Code:
auto eth0
iface eth0 inet static
    address {IP-ADDRESS}
    network {NETWORK-ADDRESS}
    netmask {NETMASK}
    broadcast {BROADCAST-ADDRESS}
    gateway {IP-ADDRESS-GATEWAY}
    dns-nameservers {IP-ADDRESS-DNS}
Example :

Code:
auto eth0
iface eth0 inet static
    address 192.168.1.30
    network 192.168.1.0
    netmask 255.255.255.0
    broadcast 192.168.1.255
    gateway 192.168.1.1
    dns-nameservers 192.168.1.1 (google dns also works)

source: http://www.linuxquestions.org/questions/linux-networking-3/static-ip-%3D-no-internet-888974/