centos系统下无法ping通网关怎么办

1、重新载入网卡程序

命令如下:

(推荐教程:centos教程)

 [root@localhost ~]# /etc/init.d/network reload
Shutting down interface eth1:                             [ OK ]
Shutting down loopback interface:                         [ OK ]
Bringing up loopback interface:                           [ OK ]
Bringing up interface eth0:                               [ OK ]
Bringing up interface eth1:                               [ OK ]

2、重启网卡

网卡接口先关闭后激活,如下:

[root@localhost ~]# ifdown eth0   #关闭网络
[root@localhost ~]# ifup eth0     #启动网络

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