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$ firewall-cmd –list-all public (active)

target: default
icmp-block-inversion: no
interfaces: wlp2s0
sources: 
services: dhcpv6-client mdns ssh
ports: 
protocols: 
masquerade: no
forward-ports: 
source-ports: 
icmp-blocks: 
rich rules: 
rule family="ipv4" source address="212.27.38.253" protocol value="udp" accept