Enable Internet Access to Virtual Box (Oracle VM)

1. Open Oracle VM Virtualbox Manager
2. Right Click on Settings of the VM you want to enable
3. Click on the Network tab, Enable Network Adapter
4. Attached to Bridge Adapter and choose the Name of your internet adapter. Refer the screenshots below
5. Then, start the VM and using root, enter the command ifup eth0 to enable the network interface of the VM. (more details see the link http://www.computerhope.com/unix/ifup.htm)

Below are the screenshots showing the same: