THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
Clients may enable only one mechanism and the mechanism name is sent to the server before any SASL authentication packets are sent, if the mechanism is not GSSAPI. Server fails the authentication if the client mechanism is not enabled in the broker. For inter-broker communication, sasl.mechanism.inter.broker.protocol configuration on the broker is used by the client-mode connection to choose the SASL mechanism.
...
Client flow:
...
Server flow:
...