Firewall-cmd informacion

firewall-cmd-command-list

# Listar todas las zonas

  firewall-cmd --list-all-zones |more
  
# Listar servicios

  firewall-cmd --list-services
  
# Mostrar informacion de un servicio

  firewall-cmd --info-service=[name_service]
  firewall-cmd --info-service=ssh

# Modificar el puerto de un servicio permanentemente

  firewall-cmd --service=[name_service] --remove-port=[previus_port/protocol] --permanent
  firewall-cmd --service=[name_service] --add-port=[previus_port/protocol] --permanent
  firewall-cmd --reload
  
  # example
  
    firewall-cmd --service=[name_service] --remove-port=22/tcp --permanent
    firewall-cmd --service=[name_service] --add-port=4444/tcp --permanent
    firewall-cmd --reload