unbuntu同一网卡设置多个IP

示例如下：

auto lo

iface lo inet loopback

auto eth0

iface eth0 inet static

        address 192.168.1.80

        netmask 255.255.255.0

        gateway 192.168.1.1

        dns-nameservers 114.114.114.114

auto eth0:0

iface eth0:0 inet static

        address 192.168.1.81

        netmask 255.255.255.0

        gateway 192.168.1.1

        dns-nameservers 114.114.114.114

重启网络而不需要重启计算机

sudo /etc/init.d/networking restart