شبکه خصوصی مجازی

1) Open the terminal

2) type in: sudo ifconfig eth0 up

3)Adding IP and netmask:
sudo ifconfig eth0 [youripaddress] netmask [your netmask]

4) Adding the gateway:
sudo route add default gw [your gateway] eth0

5) Adding the DNS server:
sudo sh -c "echo nameserver [yourDNS]> /etc/resolv.conf"

6) To compile all the above entries
sudo /etc/init.d/networking restart

7) To make the above setting default. If you skip this step you will have to configure your connection on every reboot. So to make the settings persistent:
sudo update-rc.d networking defaults

8) Reboot:
sudo reboot