Centos 8 Firewall Rules

# firewall-cmd --state
# firewall-cmd --get-active-zones
# firewall-cmd --zone=public --add-service=http
# firewall-cmd --zone=public --add-service=https
# firewall-cmd --zone=public --permanent --add-service=http
# firewall-cmd --zone=public --permanent --add-service=https
# firewall-cmd --reload
# firewall-cmd --list-all
# firewall-cmd --zone=public --permanent --remove-service=http
# firewall-cmd --zone=public --permanent --remove-service=https
# firewall-cmd --reload