kona-node does not run a supervisor RPC server: the binary has no --supervisor.*
flag group. Its only interop flag, --interop.dependency-set
(KONA_NODE_INTEROP_DEPENDENCY_SET), takes a path to a dependency-set JSON file
rather than a port.
--conductor.rpc (KONA_NODE_CONDUCTOR_RPC) is not a listening port either. It is
the RPC endpoint URL of an external conductor service that the node dials out to,
and it has no default value. Supplying it enables the conductor integration when the
node runs in sequencer mode (--mode sequencer); in validator mode it has no effect.
Every port can be changed with the flag or environment variable listed
alongside it. For the full flag catalog, see the
Kona Node CLI Reference.