I have ubuntu 12.04 LTS installed in as a VM in Oracle virtual box. I am able to browse from firefox but trying to connect from command prompt to update is failing. I also tried to change software sources but even then it is erroring out. The error is "Please check your Internet Connection".
PS : I am using NAT for networking.
What might be is issue and how to correct it?
If you're using the default network type it's NAT. To keep NAT, you have to set up port forwarding like this. If you want to act more like a regular computer connected to your network, you want bridged like this.
The most common configuration for direct host to guest connectivity and internet connectivity is one host-only and one NAT interface.
My preferred configuration is bridged and host only, so I can access the machine directly and other machines on the network can access it if need be.
