[ASAPLTDA]

para firebird 3. revisa C:\Program Files (x86)\Firebird\Firebird_3_0\firebird.conf

#
# The TCP Port Number to be used for server Event Notification
# messages. The value of 0 (Zero) means that the server will choose
# a port number randomly.
#
# Per-connection configurable.
#
# Type: integer
#
#RemoteAuxPort = 0