How to open port for a specific IP address with firewall-cmd on CentOS? [duplicate]
Try this command firewall-cmd –permanent –zone=public –add-rich-rule=” rule family=”ipv4″ source address=”1.2.3.4/32″ port protocol=”tcp” port=”4567″ accept” Check the zone file later to inspect the XML configuration cat /etc/firewalld/zones/public.xml Reload the firewall firewall-cmd –reload