Firewall cfg.

firewall-config, or firewall-cmd
yum provides firewall-config

firewall-cmd --get-services
firewall-cmd --list-all-zones

man firewalld.service

ls -la /usr/lib/firewalld/services
ls -la /usr/lib/firewalld/services/

firewall-cmd --add-service=http
firewall-cmd --permanent --add-port=8080/tcp

firewall-cmd --add-rich-rule 'rule family="ipv4" destination address="192.168.4.0/24" port port="100" protocol="udp" log accept'
firewall-cmd --permanent --add-rich-rule 'rule protocol value="tcp" log'
firewall-cms --permanent --add-rich-rule 'rule protocol value="udp" log'