What should I do if I can ping the domain name successfully under CentOS but cannot ping it?

Problem:

ping: www.baidu.com: Name or service not known

Analysis:

There is a problem with domain name resolution.

(Recommended tutorial:centos tutorial)

Solution:

1. Open the /etc/resolv.conf file

2. Add nameserver, as follows:

> nameserver 192.168.37.2

The IP following is the DNS address configured in ifcfg-ens33 before.

Recommended related video tutorials:linux video tutorial

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