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| systemctl start firewalld.service
systemctl stop firewalld.service
systemctl restart firewalld.service
systemctl status firewalld.service
systemctl enable firewalld.service
systemctl disable firewalld.service
firewall-cmd --version
firewall-cmd --help
firewall-cmd --state
firewall-cmd --zone=public --list-ports
firewall-cmd --zone=public --add-service=http --permanent firewall-cmd --zone=public --add-service=https --permanent firewall-cmd --zone=public --add-port=5001/tcp --permanent
firewall-cmd --reload
firewall-cmd --get-active-zones
firewall-cmd --get-zone-of-interface=eth0
--firewall-cmd --panic-on
firewall-cmd --panic-off
firewall-cmd --query-panic
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