编辑网络配置文件/etc/network/interfaces，就可以更换Ubuntu系统的ip地址了。具体文件内容如下。 ``` # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface allow-hotplug eth0 iface eth0 inet static address 192.168.10.12 netmask 255.255.0.0 gateway 192.168.10.1 ``` ubuntu 更换 ip