ubuntu-server14.04 网络配置

一.启动网卡

ubuntu server 安装后,ifconfig 发现只有一个lo 和一个p1p1 网卡,

先查看服务器网卡:ifconfig -a ,发现有lo ,p1p1,p2p1,p3p1,p4p1

要启动其他网卡,可以通过

ifconfig p2p1 up    #启动p2p1网卡

二.配置网卡

如果需要把网卡配置为指定ip的,

首先

vi /etc/network/interfaces

添加网卡p2p1,p3p1,p4p1

# 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
auto p1p1
iface p1p1 inet dhcp
iface p2p1 inet dhcp
iface p3p1 inet dhcp
iface p4p1 inet dhcp

  

示例:
address 127.127.127.127 
netmask 255.255.255.0
gateway 127.127.127.254

配置:
ifconfig em1 127.127.127.127 netmask 255.255.255.0
route add default gw 127.127.127.254 #添加网关

#重启网卡
/etc/init.d/networking restart 
ifconfig em1 down 
ifconfig em1 up 
ifconfig #查看 
service networking restart #不用sudo

参考:https://blog.csdn.net/lingbofeiyun/article/details/51566799