What should I do if centos cannot ping Baidu?

Problem:

Unable to ping www.baidu.com in Linux.

There are two solutions, as follows:

Method 1: Open the /etc/resolv.conf configuration file

vi /etc/resolv.conf

Add the following content: (Recommended tutorial:centos usage tutorial)

nameserver 114.114.114.114 (电信的DNS)
nameserver 8.8.8.8（googel的DNS）

You can ping the external network.

Method 2: First execute the command ip a or ifconfig to check the network card used, and then enter /etc/sysconfig/network-scripts to find the corresponding network card and modify it.

vi /etc/sysconfig/network-scripts/ifcfg-ethx

Finally restart the network card.

service network restart

Recommended related video tutorials: linux video tutorial

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