Linux vacca.o2switch.net 4.18.0-553.123.2.lve.el8.x86_64 #1 SMP Thu May 7 23:17:13 UTC 2026 x86_64

//lib/firewalld/services/kshell.xml

 <?xml version="1.0" encoding="utf-8"?>
<service>
  <short>kshell</short>
  <description>Kerberized rshell server accepts rshell commands authenticated and encrypted with Kerberos 5</description>
  <port port="544" protocol="tcp"/>
</service>