How to check if the firewall is running in centos7

View method: 1. Use systemctl to view, this command is used to manage the system, the syntax is "systemctl status firewalld"; 2. Use firewall to view, you can view the default status of the firewall, the syntax is "firewall-cmd - -state".

The operating environment of this article: centos 7 system, Dell G3 computer.

How to check whether the firewall is running in centos7

Method 1: systemctl status firewalld

Commands to open, close and disable the firewall

(1) Set the firewall to be enabled at startup: systemctl enable firewalld.service

(2) Set the firewall to be disabled at startup: systemctl disable firewalld.service

(3) Start the firewall: systemctl start firewalld

(4) Turn off the firewall: systemctl stop firewalld

(5) Check the firewall status: systemctl status firewalld

The example is as follows:

Method 2: firewall-cmd --state

View the default firewall status (notrunning is displayed after closing, running is displayed after opening)

systemctl stop firewalld.service #停止firewall
systemctl disable firewalld.service #禁止firewall开机启动

Recommended tutorial: "centos tutorial》

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