Centos7 不能联网问题解决（ONBOOT=yes）

[root@node3 network-scripts]# cat ifcfg-eth0
# Created by cloud-init on instance boot automatically, do not edit.
#
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
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=eth0
UUID=b9af732f-3174-4867-9eff-e10049e71224
ONBOOT=yes
DEVICE=eth0
DNS1=114.114.114.114
GATEWAY=10.2.2.1
IPADDR=10.2.2.210
NETMASK=255.255.255.0
[root@node3 network-scripts]# pwd
/etc/sysconfig/network-scripts
[root@node3 network-scripts]# 

[root@node3 network-scripts]# pwd
/etc/sysconfig/network-scripts
[root@node3 network-scripts]# cat ifcfg-lo
DEVICE=lo
IPADDR=127.0.0.1
NETMASK=255.0.0.0
NETWORK=127.0.0.0
# If you're having problems with gated making 127.0.0.0/8 a martian,
# you can change this to something else (255.255.255.255, for example)
BROADCAST=127.255.255.255
ONBOOT=yes
NAME=loopback

Centos7 不能联网问题解决（ONBOOT=yes）

https://copyfuture.com/blogs-details/202012291851108874z58zou33dn43il