File firewalld-service.xml of Package shellinabox

<?xml version="1.0" encoding="utf-8"?>
<service>
  <short>Shell In A Box</short>
  <description>Shell In A Box implements a web server that can export arbitrary command line tools to a web based terminal emulator. All client-server communications are encrypted, if SSL/TLS certificates have been installed.</description>
  <port protocol="tcp" port="4200"/>
</service>