Firewalld list rules

To list rules use command

firewall-cmd --list-all --zone=public

To list all open ports

firewall-cmd --list-ports

Example

[root@centos7 zones]# firewall-cmd --zone=public --add-rich-rule='rule family="ipv4" source address="10.1.1.2/32" port protocol="tcp" port="1-65535" accept'
success
[root@centos7 zones]# firewall-cmd --list-all --zone=public
public (active)
  target: default
  icmp-block-inversion: no
  interfaces: eth0 eth1
  sources: 
  services: dhcpv6-client ssh
  ports: 25/tcp 9090/tcp
  protocols: 
  masquerade: no
  forward-ports: 
  source-ports: 
  icmp-blocks: 
  rich rules: 
        rule family="ipv4" source address="10.1.1.2/32" port port="1-65535" protocol="tcp" accept
[root@centos7 zones]# firewall-cmd --zone=public --remove-rich-rule='rule family="ipv4" source address="10.1.1.2/32" port protocol="tcp" port="1-65535" accept'                                            
success
[root@centos7 zones]# firewall-cmd --list-all --zone=public
public (active)
  target: default
  icmp-block-inversion: no
  interfaces: eth0 eth1
  sources: 
  services: dhcpv6-client ssh
  ports: 25/tcp 9090/tcp
  protocols: 
  masquerade: no
  forward-ports: 
  source-ports: 
  icmp-blocks: 
  rich rules: 

[root@centos7 zones]#

See firewall-cmd