I just installed my first Ubuntu server (12.04) instance and immediately am noticing a few things:

• Running apt-get install or update fails (see below)
• Running ifconfig produces peculiar IP addresses starting with 10.x.x.x and my router does not see the server at all in its "Attached Devices" page (its a consumer grade Netgear)

When I run apt-get I get 50+ of the following errors:

Failed to fetch <some-http-url>. Temporary failure resolving <blah>.ubuntu.com

I read up on this error for 12.04, and found some similar posts on this forum and on serverfault that recommended going into /etc/resolv.conf and adding an entry:

nameserver 8.8.8.8

To my surprise, I found that /etc/resolve.conf was a symlink pointing to somewhere else and I had to delete it first, then create a new one with the entry indicated above.

I restarted the server and tried running apt-get again: same results.

How do I start diagnosing the problem (I'm a relatively new Linux/Ubuntu user)?

Additional details that may help:

• This is actually a virtual machine running as a VirtualBox guest OS
• The physical host that is running this VM is my laptop which has a wireless connection; I'm wondering if (somehow) the laptop is getting the network wirelessly, but perhaps either the VBox VM and/or the Ubuntu server OS isn't configured for wireless and so nothing is "getting through"?

Thanks in advance for any pointers!

Edit:

Here is a snapshot of my VM's Network settings (only Adapter 1 has any information populating its fields, so I assume my VM has only 1 adapter):

Here is the output when I run ifconfig from the terminal:

And here is the output when I run route from the terminal:

Running ping google.com: