解决：ping: www.baidu.com: 未知的名称或服务

问题描述

1. 搭建的centos7环境，配置完网络后，出现ping: www.baidu.com: 未知的名称或服务.

[root@localhost mysql]# ping www.baidu.com
ping: www.baidu.com: 未知的名称或服务
[root@localhost mysql]# 

解决方案

1. 第一步：排查VM网络配置。

2. 第二步：不是VM配置问题那就是linux配置文件的问题,查看/etc/sysconfig/network-scripts/ifcfg-ens33 ,多打了""，并且应该将 192.168.88.0 换成 192.168.88.128

3. 重启下：service network restart

   [root@localhost network-scripts]# service network restart
   Restarting network (via systemctl):                        [  确定  ]
   [root@localhost network-scripts]# 
   

4. 使用ifconfig查看

   [root@localhost network-scripts]# ifconfig
   ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
           inet 192.168.88.0  netmask 255.255.255.0  broadcast 192.168.88.255
           inet6 fe80::20c:29ff:fe08:9dec  prefixlen 64  scopeid 0x20<link>
           ether 00:0c:29:08:9d:ec  txqueuelen 1000  (Ethernet)
           RX packets 2211  bytes 161854 (158.0 KiB)
           RX errors 0  dropped 0  overruns 0  frame 0
           TX packets 2117  bytes 174118 (170.0 KiB)
           TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
   
   lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
           inet 127.0.0.1  netmask 255.0.0.0
           inet6 ::1  prefixlen 128  scopeid 0x10<host>
           loop  txqueuelen 1000  (Local Loopback)
           RX packets 1354  bytes 132618 (129.5 KiB)
           RX errors 0  dropped 0  overruns 0  frame 0
           TX packets 1354  bytes 132618 (129.5 KiB)
           TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0