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I created a Ubuntu server on virtualbox that Ubuntu server install with minimal virtual machine. I created the three linked clone and I have internal network between them. I removed 70-persistent-net.rules. I see this output when I run ifconfig:

eth0 Link encap:Ethernet HWaddr 08:00:27:e6:72:8a
     inet6 addr:fe80::a00:27ff:fee6:728a/64 Scop:Link

I cannot see IPv4 address. I need an IPv4 address. How do I get this?

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Which runlevel you are using? – max Apr 8 '13 at 4:08
i am newbie,what is runlevel? – user859928 Apr 8 '13 at 6:21
In the command prompt just type runlevel and press Enter. It will show some number tell me that number. – max Apr 8 '13 at 6:24 show 2. – user859928 Apr 8 '13 at 6:31
In VirtualBox goto Settings > Network in that check "Attached to" in this you selected NAT or Bridged Adapter? – max Apr 8 '13 at 6:58
up vote 1 down vote accepted

In VirtualBox goto enter image description here > enter image description here in that check "Attached to" and select Bridged Adapter. It will work. like this.

enter image description here

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