How to solve the problem of not being able to ping the network under centos

Problem:

The IP address in the centos system is configured correctly, but the network cannot be pinged, ping: unknown host www.baidu.com.

Cause analysis:

Because the DNS is not set, pinging the external network cannot be pinged.

(Recommended tutorial: centos tutorial)

Solution:

1. Add DNS to the file /etc/resolv.conf

search localdomain
nameserver 192.168.0.1
nameserver 61.139.2.69

2. Restart the network card service:

systemctl restart network.service

The ping was successful.

Related video tutorial recommendations: linux video tutorial

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