/usr/lib/firewalld/services/ Current File: //usr/lib/firewalld/services/high-availability.xml

<?xml version="1.0" encoding="utf-8"?>
<service>
  <short>Red Hat High Availability</short>
  <description>This allows you to use the Red Hat High Availability (previously named Red Hat Cluster Suite). Ports are opened for corosync, pcsd, pacemaker_remote, dlm and corosync-qnetd.</description>
  <port protocol="tcp" port="2224"/>
  <port protocol="tcp" port="3121"/>
  <port protocol="tcp" port="5403"/>
  <port protocol="udp" port="5404"/>
  <port protocol="udp" port="5405-5412"/>
  <port protocol="tcp" port="9929"/>
  <port protocol="udp" port="9929"/>
  <port protocol="tcp" port="21064"/>
</service>