Centos 7 设置开机自动联网

ls /etc/sysconfig/network-scripts/

# 找到ifcfg-e`npxxx`，如我的是`rk-scripts`

sudo vim /etc/sysconfig/network-scripts/ifcfg-enp4s0

# 一般文件里面有下面这些 
TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=enp4s0
UUID=4d0c8a3a-50bf-497a-9b04-f5fba085ef08
DEVICE=enp4s0
ONBOOT=no

# 把`ONBOOT=no`该为`  ONBOOT=yes`，保存即可。