Ubuntu 網卡設定DHCP

1. sudo  vim /etc/network/interfaces
2. 將 iface eth0 inet static 改成 iface eth0 inetdhcp
3. sudo /etc/init.d/networking restart

VirtualBox就重開機一下吧。
PS. 如果你有第二張網卡 





auto eth1
iface eth1 inetdhcp


PS. 如果想用固定IP

#Class C 設法

iface eth0 inet static 

address 192.168.1.2

netmask 255.255.255.0
gateway 192.168.1.1


資料來源：

• http://askubuntu.com/questions/446183/how-to-set-up-nat-and-host-only-networking-with-static-ip-address-in-virtualbox