Centos网卡配置问题无法上网

检查网卡配置文件是否有误：

例：

vim /etc/sysconfig/network-scripts/ifcfg-em1

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=em1
UUID=dbe366d7-bb88-451e-b449-8a1a1b5e3115
DEVICE=em1
ONBOOT=yes
IPADDR=192.168.1.8
GATEWAY=192.168.1.1
NETMASK=255.255.255.0
ZONE=public

vim /etc/resolv.conf

# Generated by NetworkManager
nameserver 100.100.2.136
nameserver 100.100.2.138
nameserver 114.114.114.114
nameserver 8.8.8.8
nameserver 192.168.1.1

重启网卡

ifdown  em1

ifup  em1

 

重启网络服务

systemctl restart NetworkManager

systemctl restart network

或

service network restart

service  NetworkManager  restart