#进入网卡目录
1. cd /etc/sysconfig/network-scripts
# 修改ONBOOT=yes
2. vi ifcfg-ens33
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
UUID=2a40ad0f-9399-400f-9342-ddcab434ff76
DEVICE=ens33
ONBOOT=yes
#重启网卡服务
2.service network restart