1、centos mini 默认不启用网卡
进入centos网络配置文件夹 /etc/sysconfig/network-scripts
[root@localhost ~]# cd /etc/sysconfig/network-scripts
[root@localhost ~]# ls
-rw-r--r--. 1 root root 282 11月 12 15:34 ifcfg-enp0s3
-rw-r--r--. 1 root root 254 8月 19 2019 ifcfg-lo
lrwxrwxrwx. 1 root root 24 11月 12 14:31 ifdown -> ../../../usr/sbin/ifdown
-rwxr-xr-x. 1 root root 654 8月 19 2019 ifdown-bnep
-rwxr-xr-x. 1 root root 6532 8月 19 2019 ifdown-eth
-rwxr-xr-x. 1 root root 781 8月 19 2019 ifdown-ippp
-rwxr-xr-x. 1 root root 4540 8月 19 2019 ifdown-ipv6
lrwxrwxrwx. 1 root root 11 11月 12 14:31 ifdown-isdn -> ifdown-ippp
-rwxr-xr-x. 1 root root 2130 8月 19 2019 ifdown-post
-rwxr-xr-x. 1 root root 1068 8月 19 2019 ifdown-ppp
-rwxr-xr-x. 1 root root 870 8月 19 2019 ifdown-routes
-rwxr-xr-x. 1 root root 1456 8月 19 2019 ifdown-sit
-rwxr-xr-x. 1 root root 1621 12月 9 2018 ifdown-Team
-rwxr-xr-x. 1 root root 1556 12月 9 2018 ifdown-TeamPort
-rwxr-xr-x. 1 root root 1462 8月 19 2019 ifdown-tunnel
lrwxrwxrwx. 1 root root 22 11月 12 14:31 ifup -> ../../../usr/sbin/ifup
-rwxr-xr-x. 1 root root 12415 8月 19 2019 ifup-aliases
-rwxr-xr-x. 1 root root 910 8月 19 2019 ifup-bnep
-rwxr-xr-x. 1 root root 13574 8月 19 2019 ifup-eth
-rwxr-xr-x. 1 root root 12075 8月 19 2019 ifup-ippp
-rwxr-xr-x. 1 root root 11893 8月 19 2019 ifup-ipv6
lrwxrwxrwx. 1 root root 9 11月 12 14:31 ifup-isdn -> ifup-ippp
-rwxr-xr-x. 1 root root 650 8月 19 2019 ifup-plip
-rwxr-xr-x. 1 root root 1064 8月 19 2019 ifup-plusb
-rwxr-xr-x. 1 root root 4997 8月 19 2019 ifup-post
-rwxr-xr-x. 1 root root 4154 8月 19 2019 ifup-ppp
-rwxr-xr-x. 1 root root 2001 8月 19 2019 ifup-routes
-rwxr-xr-x. 1 root root 3303 8月 19 2019 ifup-sit
-rwxr-xr-x. 1 root root 1755 12月 9 2018 ifup-Team
-rwxr-xr-x. 1 root root 1876 12月 9 2018 ifup-TeamPort
-rwxr-xr-x. 1 root root 2780 8月 19 2019 ifup-tunnel
-rwxr-xr-x. 1 root root 1836 8月 19 2019 ifup-wireless
-rwxr-xr-x. 1 root root 5419 8月 19 2019 init.ipv6-global
-rw-r--r--. 1 root root 20678 8月 19 2019 network-functions
-rw-r--r--. 1 root root 31027 8月 19 2019 network-functions-ipv6
修改网络配置 ONBOOT=no 改为 ONBOOT=yes
[root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-enp0s3
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=enp0s3
UUID=fbf88909-1170-4274-af83-fc6af286b9e0
DEVICE=enp0s3
ONBOOT=yes
重启网络
[root@localhost ~]# service network restart
