What should I do if the port under centos cannot be accessed?

Problem:

After starting the external service on the centos7 listening port, the port access is denied.

Solution:

If you are just using a development environment, you may consider turning off the firewall directly.

The commands are as follows:

systemctl disable firewalld
systemctl stop firewalld

After running the above two commands, the firewall will be closed and will not start automatically at boot.

Note: Remember not to turn off the firewall at will in the production environment.

(Recommended tutorial: centos tutorial)

The above is the detailed content of What should I do if the port under centos cannot be accessed?. For more information, please follow other related articles on the PHP Chinese website!