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Enter a command. For example: nmcli agent, setfacl, tac, fwupdmgr.

firewall-cmd

 
The firewalld command-line client. More information: https://firewalld.org/documentation/man-pages/firewall-cmd.
 
  • View the available firewall zones:
     
    firewall-cmd --get-active-zones
     
  • View the rules which are currently applied:
     
    firewall-cmd --list-all
     
  • Permanently move the interface into the block zone, effectively blocking all communication:
     
    firewall-cmd --permanent --zone={{block}} --change-interface={{enp1s0}}
     
  • Permanently open the port for a service in the specified zone (like port 443 when in the public zone):
     
    firewall-cmd --permanent --zone={{public}} --add-service={{https}}
     
  • Permanently close the port for a service in the specified zone (like port 80 when in the public zone):
     
    firewall-cmd --permanent --zone={{public}} --remove-service={{http}}
     
  • Permanently open two arbitrary ports in the specified zone:
     
    firewall-cmd --permanent --zone={{public}} --add-port={{25565/tcp}} --add-port={{19132/udp}}
     
  • Reload firewalld to force rule changes to take effect:
     
    firewall-cmd --reload

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