Daily use ubuntu restart Ubuntu virtual machine network /etc/init.d/networking restart error

First, the Internet

　　1, IP address set

　　　　1) Reference Site 1: Ubuntu how to change the IP address, and apt source

　　　　2) Reference Site 2: Ubuntu modifications and ip address configuration

　　　　3) Reference Site 3: Ubuntu /etc/init.d/networking restart to restart the network error

　　　　4) Reference Site 4: Under ubuntu sudo service network restart to restart the network failure

　　　　5) Reference Site 5: effective solutions [VMware] Ubuntu virtual machine can not connect to the network (GUI OS)

　　2, DNS settings

　　　　1) 1 Reference URL: modifications permanent DNS method Ubuntu

Second, time synchronization