Just in case you have disabled the networking script with "sudo update-rc.d -f networking remove" and for some reason or another want to undo this change, you can re-enable the script again with "sudo update-rc.d networking start 40 S ."
Just in case you have disabled the networking script with "sudo update-rc.d -f networking remove" and for some reason or another want to undo this change, you can re-enable the script again with "sudo update-rc.d networking start 40 S ."