RozoFS service ports
rtozos service ports are define by port ranges from a given port.
This given ports are either compiled constant or value defined in
/etc/services if any. The debug command "reserved_ports" in
rozodiag or toward any RozoFS module enables to see the values
of the service ports, the command to run in order to reserve
ports on the RozoFS cluster as well as the current value reserved
on the host running the debug command.