ubuntu 16.04 网卡配置要点 和查看有几块网卡的命令

lspci |grep -i Eth

ip link

systemctl restart networking

vi /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto enp0s3
iface enp0s3 inet dhcp

auto enp0s8
iface enp0s8 inet static
address 1.1.1.2
mask 255.255.255.0