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This article mainly introduces an example of the operation of firewall in centos7.8, which has a certain reference value, and interested friends can refer to it. I hope you will gain a lot after reading this article.

Check status firewall-cmd-- state starts and stops systemctl start firewalld.servicesystemctl stop firewalld.servicesystemctl restart firewalld.service Boot self-starting systemctl enable firewalld.servicesystemctl disable firewalld.service View the open port

All ports

Firewall-cmd-list-ports

Permanently open port

Firewall-cmd-list-ports-permanent

Specify space port

Firewall-cmd-list-ports-zone=public

Specific port

Firewall-cmd-- zone=public-- query-port=80/tcp add Port

Temporary port

Firewall-cmd-add-port=80/tcp

Permanent port

Firewall-cmd-add-port=80/tcp-permanent

Specify Space-temporary Port

Firewall-cmd-zone=public-add-port=80/tcp

Specified space-permanent port

Firewall-cmd-- zone=public-- add-port=80/tcp-- permanent close the port

Temporary port

Firewall-cmd-remove-port=80/tcp

Permanent port

Firewall-cmd-remove-port=80/tcp-permanent

Specify Space-temporary Port

Firewall-cmd-zone=public-remove-port=80/tcp

Specified space-permanent port

Firewall-cmd-- zone=public-- remove-port=80/tcp-- permanent update firewall rules firewall-cmd-- reload close selinux# vim / etc/selinux/configSELINUX=disabled Thank you for reading this article carefully. I hope the article "examples of operating firewall in centos7.8" shared by the editor will be helpful to you. At the same time, I also hope that you will support and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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