Thanks. I have other questions:
1- How can I remove multiple ports?
2- When I want to remove some ports, then it shows me "Warning: NOT_ENABLED:" message!
# firewall-cmd --list-all FedoraServer (active) target: default icmp-block-inversion: no interfaces: enp0s17 enp0s8 sources: services: cockpit dhcp dhcpv6-client high-availability http https ssh ports: 53/udp 135/tcp 137-138/udp 139/tcp 389/tcp 389/udp 445/tcp 464/tcp 464/udp 636/tcp 1024-5000/tcp 3268-3269/tcp protocols: masquerade: no forward-ports: source-ports: icmp-blocks:
# firewall-cmd --remove-port=389/tcp --permanent Warning: NOT_ENABLED: 389:tcp success