How to solve centos external network ping failure

Problem:

I configured a CentOS virtual machine and found that ping could not reach the external network, but I could ping the host and gateway.

Solution:

You can try turning off the firewall.

View the default firewall status (notrunning is displayed after it is turned off, running is displayed after it is turned on)

firewall-cmd --state

Stop firewall

systemctl stop firewalld.service

or

systemctl stop firewalld

Disable firewall startup

systemctl disable firewalld.service

or

systemctl disable firewalld

Related tutorial recommendations: centos tutorial

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