Pika.exceptions.probableauthenticationerror When Trying To Send Message To Remote Queue

I'm trying to run RabbitMQ Python tutorial but with sender on virtualbox host machine and receiver and queue on virtualbox guest machine. So I modified mentioned send.py code by on

Solution 1:

This is because you are trying to authenticate using the username and password guest remotely. Starting with RabbitMQ 3.3 you need to create a new account to use remotely, and guest/guest can only be used locally.

This is taken from the change log here.

25603 prevent access using the default guest/guest credentials except via localhost since (1.0.0)

It's possible to modify the RabbitMQ configuration to allow remote access using the guest account, by removing guest from loopback_users, but it's recommended to create a new user to follow best practices.

[{rabbit, [{loopback_users, []}]}].