How to solve internet problem for ubuntu in virtual box?

You can access internet on virtual box by two way one is bridge network or host only. today i show you the host only option.

1. First you need to create a Host only network in virtual box
1. virtual box -> file -> preferences -> network -> Host-only network 
2. Click add button
3. Click DHCP, click Enable Server
   
   
   
   
4. Select virtual OS, go to setting -> network
5. 
   
   
   
2. Now login to your ubuntu os and do the following 

          sudoedit /etc/network/interfaces

1. 
   # The loopback network interface
   auto lo
   iface lo inet loopback
   # NAT
   auto eth0
   iface eth0 inet dhcp
   # Host only
   auto eth1
   iface eth1 inet dhcp

After VM reboot hope everything worked fine.