How to open port for a specific IP address with firewall-cmd on CentOS?

on February 23rd, 2017 by Hades | No Comments »

If you would like to open port 1234 for the IP address 1.2.3.4 with the firewall-cmd command on a CentOS 7.1 server:

firewall-cmd --permanent --zone=public --add-rich-rule='
  rule family="ipv4"
  source address="1.2.3.4/32"
  port protocol="tcp" port="1234" accept'

firewall-cmd --permanent --zone=public --add-rich-rule='

rule family="ipv4"

source address="1.2.3.4/32"

port protocol="tcp" port="1234" accept'

Check the zone file later to inspect the XML configuration

cat /etc/firewalld/zones/public.xml

1	cat /etc/firewalld/zones/public.xml

Reload the firewall

firewall-cmd --reload

1	firewall-cmd --reload

Posted in Instruction » Linux
Tags: firewall-cmd, firewalld, iptables

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