/usr/lib/firewalld/services/ Current File: //usr/lib/firewalld/services/ceph-mon.xml

<?xml version="1.0" encoding="utf-8"?>
<service>
  <short>ceph-mon</short>
  <description>Ceph is a distributed object store and file system. Enable this option to support Ceph's Monitor Daemon.</description>
  <port protocol="tcp" port="3300"/>
  <port protocol="tcp" port="6789"/>
</service>