Using the /etc/init.d/networking restart command is invalid as follows:
root@ubuntu:~# sudo /etc/init.d/networking restart * Running /etc/init.d/networking restart is deprecated because it may not enable again some interfaces
* Reconfiguring network interfaces... Rather than invoking init scripts through /etc/init.d, use the service(8)
utility, e.g. service smbd reload
Since the script you are attempting to invoke has been converted to an
Upstart job, you may also use the reload(8) utility, e.g. reload smbd
WARNING: ifup -a is disabled in favour of NetworkManager.
Set ifupdown:managed=false in /etc/NetworkManager/NetworkManager.conf.
[ OK ]
Possible solutions:
use command
Execute dpkg-reconfigure resolvconf first
Default sudo ip addr flush dev eth0 && sudo ifdown eth0 && sudo ifup eth0
test ping