My host is windows 7 and my guest (virtual machine) is ubuntu. I cannot connect to internet when I am on virtual environment. I am using Oracle VirtualBox. Any idea? Thanks.

There are several modes in which you can connect to internet inside from a virtual machine. Easiest is using NAT.

Select your Ubuntu virtual machine in virtual box manager and go to settings. Navigate to Network and select NAT as shown in the screenshot.

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When you open Ubuntu go to Network Connection and go to Wired tab and select your connection and Edit. Use Automatic (DHCP) under IPv4 Settings. Also you can check the connect automatically. Then your system will be connected to network every time you open it.

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  • did you able to connect? – souravc Jul 18 '14 at 8:38
  • It failed to connect. – Charlo123 Jul 18 '14 at 8:56
  • is your host network functioning properly? Was the connection established at all in guest? how did you check? usually it should connect if you would able to follow the instruction properly. try restarting the virtual machine and check all the settings once. we need some more info to help you to troubleshoot. – souravc Jul 18 '14 at 9:40
  • Yes I have followed all ur setting above. I also have restarted the vm. – Charlo123 Jul 18 '14 at 9:42
  • which version of virtual box and Ubuntu are you using? – souravc Jul 18 '14 at 9:46

1- edit the file " interfaces":

sudo nano /etc/network/interfaces 

2- then make sure this line is in that file :

iface eth0 inet dhcp

3- run dhclient

4- run ping

This same problem was solved for me by changing a previously selected setting. When I originally set up VB I configured it to use a wireless connection. But then wireless for me became unavailable because of my situation, but I had forgotten that I needed to change the setting in VB to use a wired connection instead.

I don't know if this reflects your situation, but here are the steps for changing connection type:

Open VB, go to Settings, Network, Adapter 1, "Name", choose connection type.

  • I think this is pretty well covered in the July 2014 answer – Charles Green May 23 '17 at 21:21

I also had the problem that I couldn't access the Internet from my Ubuntu VM. I forgot that on the host machine (Windows 10 x64) still, an OpenVPN connection was active.

I closed OpenVPN on the Windows machine and it worked again.

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